diff --git a/R/shiny-state.R b/R/shiny-state.R
index e943b100f0aa6b128c47cb8de0ec4d1bf0f5dce3..93336497638d0ccb7180634d08e2d8ee44a82fce 100644
--- a/R/shiny-state.R
+++ b/R/shiny-state.R
@@ -22,7 +22,7 @@
 #' @importFrom shiny selectInput numericInput textInput HTML
 
 
-GUI_SELECT_INPUTS <- c("proj_list",
+GUI_SELECT_INPUTS = c("proj_list",
                        "indir_list",
                        "ms1_coarse_unit",
                        "ms1_fine_unit",
@@ -30,7 +30,7 @@ GUI_SELECT_INPUTS <- c("proj_list",
                        "ret_time_shift_tol_unit",
                        "dfile_list")
                   
-GUI_NUMERIC_INPUTS <- c("ms1_coarse",
+GUI_NUMERIC_INPUTS = c("ms1_coarse",
                    "ms1_fine",
                    "ms1_eic",
                    "ms1_rt_win",
@@ -39,14 +39,14 @@ GUI_NUMERIC_INPUTS <- c("ms1_coarse",
                    "s2n",
                    "ret_time_shift_tol")
 
-GUI_TEXT_INPUTS <- c("rep_aut",
+GUI_TEXT_INPUTS = c("rep_aut",
                      "rep_tit")
 
-GUI_RADIO_INPUTS <- c("missingprec")
+GUI_RADIO_INPUTS = c("missingprec")
 
 
 
-GUI_ALL_INPUTS <- c(GUI_SELECT_INPUTS,
+GUI_ALL_INPUTS = c(GUI_SELECT_INPUTS,
                     GUI_NUMERIC_INPUTS,
                     GUI_TEXT_INPUTS,
                     GUI_RADIO_INPUTS)
@@ -55,8 +55,8 @@ GUI_ALL_INPUTS <- c(GUI_SELECT_INPUTS,
 add_new_def_tag <- function(old_tags,how_many) {
     ind = which(grepl(r"(^F\d+$)",old_tags))
     st_num = if (length(ind)>0L) {
-                    old_def_tags <- old_tags[ind]
-                    tag_nums <- gsub(r"(^F(\d+)$)",r"(\1)",old_def_tags)
+                    old_def_tags = old_tags[ind]
+                    tag_nums = gsub(r"(^F(\d+)$)",r"(\1)",old_def_tags)
                     max(as.integer(tag_nums))
                    
         
@@ -162,26 +162,26 @@ create_gui <- function(project_path=NA_character_) {
 #'@export
 r2datatab <- function(rdatatab) {
     shiny::isolate({
-        file <- rdatatab$file
-        adduct <- rdatatab$adduct
-        tag <- rdatatab$tag
-        set <- rdatatab$set
+        file = rdatatab$file
+        adduct = rdatatab$adduct
+        tag = rdatatab$tag
+        set = rdatatab$set
         })
-    if (length(file)==0L) file <- character(0)
-    if (length(adduct)==0L) adduct <- rep(NA_character_,length(file))
-    if (length(tag)==0L) tag <- rep(NA_character_,length(file))
-    if (length(set)==0L) tag <- rep(NA_character_,length(file))
+    if (length(file)==0L) file = character(0)
+    if (length(adduct)==0L) adduct = rep(NA_character_,length(file))
+    if (length(tag)==0L) tag = rep(NA_character_,length(file))
+    if (length(set)==0L) tag = rep(NA_character_,length(file))
     data.table(tag=tag,adduct=adduct,set=set,file=file)
 }
 
 
 r2filetag <- function(rfiletag) {
     shiny::isolate({
-        file <- rfiletag$file
-        tag <- rfiletag$tag
+        file = rfiletag$file
+        tag = rfiletag$tag
         })
-    if (length(file)==0L) file <- character(0)
-    if (length(tag)==0L) tag <- rep(NA_character_,length(file))
+    if (length(file)==0L) file = character(0)
+    if (length(tag)==0L) tag = rep(NA_character_,length(file))
     data.table(tag=tag,file=file)
 }
 
@@ -193,7 +193,7 @@ gen_dtab <- function(tablist,sets) {
 
 r2compounds <- function(rcompounds) {
     shiny::isolate({
-        cmpd_lists <- rcompounds$lists
+        cmpd_lists = rcompounds$lists
         })
 
     list(lists=cmpd_lists)
@@ -202,17 +202,17 @@ r2compounds <- function(rcompounds) {
 
 #' @export
 pack_app_state <- function(input, gui) {
-    pack <- list()
+    pack = list()
     shiny::isolate({
-        pack_inputs <- list()
-        pack_input_names <- which_gui_inputs(inputs)
-        pack_inputs <- shiny::reactiveValuesToList(input)[pack_input_names]
-        pack$input <- pack_inputs
-        pack$datatab <- r2datatab(gui$datatab)
-        pack$filetag <- r2filetag(gui$filetag)
-        pack$compounds <- r2compounds(gui$compounds)
-        pack$paths <- list()
-        pack$paths$data <- gui$paths$data
+        pack_inputs = list()
+        pack_input_names = which_gui_inputs(inputs)
+        pack_inputs = shiny::reactiveValuesToList(input)[pack_input_names]
+        pack$input = pack_inputs
+        pack$datatab = r2datatab(gui$datatab)
+        pack$filetag = r2filetag(gui$filetag)
+        pack$compounds = r2compounds(gui$compounds)
+        pack$paths = list()
+        pack$paths$data = gui$paths$data
 
         })
     pack
@@ -318,17 +318,17 @@ unpack_app_state <- function(session,envopts,input,top_data_dir,project_path,pac
                                  input=input,
                                  packed_state=packed_state)
         
-        gui <- create_gui(project_path=project_path)
-        gui$compounds$lists <- packed_state$compounds$lists
-        gui$datatab$file <- packed_state$datatab$file
-        gui$datatab$adduct <- packed_state$datatab$adduct
-        gui$datatab$tag <- packed_state$datatab$tag
-        gui$datatab$set <- packed_state$datatab$set
+        gui = create_gui(project_path=project_path)
+        gui$compounds$lists = packed_state$compounds$lists
+        gui$datatab$file = packed_state$datatab$file
+        gui$datatab$adduct = packed_state$datatab$adduct
+        gui$datatab$tag = packed_state$datatab$tag
+        gui$datatab$set = packed_state$datatab$set
 
-        gui$filetag$file <- packed_state$filetag$file
-        gui$filetag$tag <- packed_state$filetag$tag
+        gui$filetag$file = packed_state$filetag$file
+        gui$filetag$tag = packed_state$filetag$tag
 
-        x <- packed_state$paths$data
+        x = packed_state$paths$data
         gui$paths$data = if (length(x)>0 && nchar(x)>0) {
                              file.path(top_data_dir,basename(x))
                          } else ""
@@ -342,12 +342,12 @@ unpack_app_state <- function(session,envopts,input,top_data_dir,project_path,pac
 
 input2conf_setup <- function(input,gui,conf=list()) {
     if (length(conf)==0L) {
-        conf$compounds <- list()
-        conf$summary_table <- list()
-        conf$debug <- F
+        conf$compounds = list()
+        conf$summary_table = list()
+        conf$debug = F
     }
 
-    conf$compounds$lists <- gui$compounds$lists
+    conf$compounds$lists = gui$compounds$lists
     conf$paths$data = basename(gui$paths$data)
     conf
 }
@@ -355,11 +355,11 @@ input2conf_setup <- function(input,gui,conf=list()) {
 input2conf_extract <- function(input,conf) {
     conf$tolerance = list()
     conf$extract = list()
-    conf$tolerance[["ms1 fine"]] <- paste(input$ms1_fine,input$ms1_fine_unit)
-    conf$tolerance[["ms1 coarse"]] <- paste(input$ms1_coarse,input$ms1_coarse_unit)
-    conf$tolerance[["eic"]] <- paste(input$ms1_eic,input$ms1_eic_unit)
-    conf$tolerance[["rt"]] <- paste(input$ms1_rt_win,input$ms1_rt_win_unit)
-    conf$extract$missing_precursor_info <- input$missingprec
+    conf$tolerance[["ms1 fine"]] = paste(input$ms1_fine,input$ms1_fine_unit)
+    conf$tolerance[["ms1 coarse"]] = paste(input$ms1_coarse,input$ms1_coarse_unit)
+    conf$tolerance[["eic"]] = paste(input$ms1_eic,input$ms1_eic_unit)
+    conf$tolerance[["rt"]] = paste(input$ms1_rt_win,input$ms1_rt_win_unit)
+    conf$extract$missing_precursor_info = input$missingprec
     conf
 
 }
@@ -367,26 +367,26 @@ input2conf_extract <- function(input,conf) {
 
 input2conf_prescreen <- function(input,conf) {
     conf$prescreen = list()
-    conf$prescreen[["ms1_int_thresh"]] <- input$ms1_int_thresh
-    conf$prescreen[["ms2_int_thresh"]] <- input$ms2_int_thresh
-    conf$prescreen[["s2n"]] <- input$s2n
-    conf$prescreen[["ret_time_shift_tol"]] <- paste(input$ret_time_shift_tol,input$ret_time_shift_tol_unit)
+    conf$prescreen[["ms1_int_thresh"]] = input$ms1_int_thresh
+    conf$prescreen[["ms2_int_thresh"]] = input$ms2_int_thresh
+    conf$prescreen[["s2n"]] = input$s2n
+    conf$prescreen[["ret_time_shift_tol"]] = paste(input$ret_time_shift_tol,input$ret_time_shift_tol_unit)
     conf
 }
 
 input2conf_figures <- function(input,conf) {
     conf$figures = list()
-    conf$figures$rt_min <- paste(input$plot_rt_min,input$plot_rt_min_unit)
-    conf$figures$rt_max <- paste(input$plot_rt_max,input$plot_rt_max_unit)
-    conf$figures$ext <- input$plot_ext
+    conf$figures$rt_min = paste(input$plot_rt_min,input$plot_rt_min_unit)
+    conf$figures$rt_max = paste(input$plot_rt_max,input$plot_rt_max_unit)
+    conf$figures$ext = input$plot_ext
     conf
     
 }
 
 input2conf_report <- function(input,conf) {
     conf$report = list()
-    conf$report$author <- input$rep_aut
-    conf$report$title <- input$rep_tit
+    conf$report$author = input$rep_aut
+    conf$report$title = input$rep_tit
     conf
 
 }
@@ -427,7 +427,7 @@ app_update_conf <- function(input,gui,envopts,fconf,m) {
         fstr = paste0("input2conf_",fstrp)
         m$conf = do.call(fstr,list(input,conf=m$conf))
     }
-    m$run <- new_runtime_state(project=gui$paths$project,
+    m$run = new_runtime_state(project=gui$paths$project,
                                envopts = envopts,
                                conf=m$conf)
     m
@@ -455,7 +455,7 @@ app_state2state <- function(input,gui,envopts,m=NULL) {
 }
     
 get_sets <- function(gui) {
-    fn_lists <- file.path(gui$paths$project,gui$compounds$lists)
+    fn_lists = file.path(gui$paths$project,gui$compounds$lists)
     cmpds = join_compound_lists(fn_lists)
     cmpds = process_cmpd_sets(cmpds)
     cmpds[,unique(set)]
@@ -463,16 +463,16 @@ get_sets <- function(gui) {
 
 
 gen_dfiles_tab <- function(gui) {
-    curr_file <- gui$filetag$file
-    curr_tag <- gui$filetag$tag
+    curr_file = gui$filetag$file
+    curr_tag = gui$filetag$tag
     
-    res <- data.table(file=curr_file,tag=curr_tag)
+    res = data.table(file=curr_file,tag=curr_tag)
     res
     
 }
 
 gui2datatab <- function(gui) {
-    df <- data.table(tag=as.character(gui$datatab$tag),
+    df = data.table(tag=as.character(gui$datatab$tag),
                      adduct=as.character(gui$datatab$adduct),
                      set=as.character(gui$datatab$set),
                      file=as.character(gui$datatab$file))
@@ -491,31 +491,31 @@ gui2datatab <- function(gui) {
 ## (of tags, CEs) in the index.
 gen_cindex <- function(summ,sorder,cols = CINDEX_COLS,by. = CINDEX_BY) {
     if (NROW(summ) == 0L) return(NULL)
-    allc <- c(by.,cols)
-    xsumm <- summ[,..allc]
+    allc = c(by.,cols)
+    xsumm = summ[,..allc]
     setnames(xsumm,old="ms1_rt",new="rt",skip_absent=T)
-    res <- xsumm[,.SD[max(qlt_ms1)==qlt_ms1][max(qlt_ms2)==qlt_ms2],by=by.]
-    res <- res[,c("mz","rt","Name","qlt_ms1","qlt_ms2"):=.(mean(mz,na.rm=T),
+    res = xsumm[,.SD[max(qlt_ms1)==qlt_ms1][max(qlt_ms2)==qlt_ms2],by=by.]
+    res = res[,c("mz","rt","Name","qlt_ms1","qlt_ms2"):=.(mean(mz,na.rm=T),
                                                            mean(rt,na.rm=T),
                                                            first(Name),
                                                            max(qlt_ms1,na.rm=T),
                                                            max(qlt_ms2,na.rm=T)),
                by=by.]
-    res <- res[,unique(.SD),by=by.]
+    res = res[,unique(.SD),by=by.]
    
-    sorder <- unique(sorder)
-    wna <- which(sorder=="nothing"); if (length(wna)>0L) sorder <- sorder[-wna]
-    quality <- which("quality"==sorder)
+    sorder = unique(sorder)
+    wna = which(sorder=="nothing"); if (length(wna)>0L) sorder = sorder[-wna]
+    quality = which("quality"==sorder)
     if (length(quality)>0L) {
-        pre <- head(sorder,quality-1L)
-        post <- tail(sorder,-quality)
-        sorder <- c(pre,"qlt_ms1","qlt_ms2",post)
+        pre = head(sorder,quality-1L)
+        post = tail(sorder,-quality)
+        sorder = c(pre,"qlt_ms1","qlt_ms2",post)
     }
-    ord <- rep(1L,length(sorder))
+    ord = rep(1L,length(sorder))
 
     if ("qlt_ms1" %in% sorder) {
-        ind <- which(sorder %in% c("qlt_ms1","qlt_ms2"))
-        ord[ind] <- -1L
+        ind = which(sorder %in% c("qlt_ms1","qlt_ms2"))
+        ord[ind] = -1L
     }
     if (length(sorder)>0) setorderv(res,cols=sorder,order=ord)
 
@@ -528,22 +528,22 @@ gen_cindex <- function(summ,sorder,cols = CINDEX_COLS,by. = CINDEX_BY) {
 
 
 cindex_from_input <- function(clabs,sort_catg=character(4),summ) {
-    grp <- if (isTruthy(clabs)) setdiff(CINDEX_BY,clabs) else CINDEX_BY
-    sorder <- setdiff(sort_catg,clabs)
+    grp = if (isTruthy(clabs)) setdiff(CINDEX_BY,clabs) else CINDEX_BY
+    sorder = setdiff(sort_catg,clabs)
     gen_cindex(summ,sorder=sorder,by=grp)
 }
 
 get_cindex_key <- function(cindex) {
     ## Select only valid category names.
-    x <- which(CINDEX_BY %in% names(cindex))
+    x = which(CINDEX_BY %in% names(cindex))
     CINDEX_BY[x]
 }
 
 get_cindex_parents <- function(summ,ckey,kvals,labs) {
     ## Get kvals part of summ.
-    tab <- summ[(kvals),on=names(kvals)][,unique(.SD),.SDcols=labs,by=ckey] #get_data_from_key(summ,kvals)
+    tab = summ[(kvals),on=names(kvals)][,unique(.SD),.SDcols=labs,by=ckey] #get_data_from_key(summ,kvals)
     tab[,item:=do.call(paste,c(.SD,list(sep=";"))),.SDcol=labs]
-    keys <- names(tab)[names(tab)!="item"]
+    keys = names(tab)[names(tab)!="item"]
     data.table::setkeyv(tab,keys)
     tab
 }
@@ -552,15 +552,15 @@ get_cindex_kval <- function(cindex,row,key) {
     ## Accounting for not fully initialised state.
     if (!is.numeric(row) || is.na(row) || length(key)==0L || is.na(key) || NROW(cindex)==0L) return(NULL)
     
-    rowtab <- cindex[(row),..key]
-    res <- lapply(rowtab,function (x) x[[1]])
-    names(res) <- key
+    rowtab = cindex[(row),..key]
+    res = lapply(rowtab,function (x) x[[1]])
+    names(res) = key
     res
 }
 
 get_summ_subset <- function(db,summ,ptab,paritem,kvals) {
-    select <- ptab[item==(paritem)]
-    tab <- get_data_from_key(db=db,tab=summ,kvals=kvals)[select,nomatch=NULL,on=key(ptab)]
+    select = ptab[item==(paritem)]
+    tab = get_data_from_key(db=db,tab=summ,kvals=kvals)[select,nomatch=NULL,on=key(ptab)]
     if ("scan.1" %in% names(tab)) tab[,scan.1:=NULL] #TODO: This is
                                                  #probably a lousy
                                                  #hack.
@@ -568,12 +568,12 @@ get_summ_subset <- function(db,summ,ptab,paritem,kvals) {
 }
 
 get_ltab <- function(summ_subs,cols=c("scan","ms2_rt")) {
-    tab <- summ_subs
+    tab = summ_subs
     if (NROW(tab)==1L && is.na(tab$an)) return(data.table::data.table(item=character()))
     tab[is.na(ms2_sel),ms2_sel:=F] #TODO FIXME: Check why NAs exist at all?
     tab[,passval:=fifelse(qa_pass==T,"OK","BAD")]
     tab[ms2_sel==T,passval:="SELECTED"]
-    res <- tab[,item:=do.call(paste,c(.SD,list(sep=";"))),.SDcols=c(cols,"passval")]
+    res = tab[,item:=do.call(paste,c(.SD,list(sep=";"))),.SDcols=c(cols,"passval")]
     data.table::setkey(res,"ms2_rt")
     res
 }
@@ -587,18 +587,18 @@ update_on_commit_chg <- function(summ,input,ptab,ltab) {
 
     n_ms2_sel = input$chg_ms2sel
     
-    sel_par <- input$sel_parent_trace
-    sel_spec <- input$sel_spec
+    sel_par = input$sel_parent_trace
+    sel_spec = input$sel_spec
 
-    pkvals <- ptab[item==(sel_par),.SD,.SDcols=intersect(SUMM_KEY,names(ptab))]
-    lkvals <- ltab[item==(sel_spec),.SD,.SDcols=intersect(SUMM_KEY,names(ltab))]
-    kvals <- c(as.list(pkvals),as.list(lkvals))
-    kvals <- kvals[unique(names(kvals))]
+    pkvals = ptab[item==(sel_par),.SD,.SDcols=intersect(SUMM_KEY,names(ptab))]
+    lkvals = ltab[item==(sel_spec),.SD,.SDcols=intersect(SUMM_KEY,names(ltab))]
+    kvals = c(as.list(pkvals),as.list(lkvals))
+    kvals = kvals[unique(names(kvals))]
     if ('an' %in% names(kvals) && n_ms2_sel) {
-        rkvals <- kvals[!(names(kvals) %in% 'an')]
-        rktab <- tabkey(summ,kvals=rkvals)
-        tabsel <- summ[rktab,.(scan,ms2_sel)]
-        ansel <- tabsel[ms2_sel == T,scan]
+        rkvals = kvals[!(names(kvals) %in% 'an')]
+        rktab = tabkey(summ,kvals=rkvals)
+        tabsel = summ[rktab,.(scan,ms2_sel)]
+        ansel = tabsel[ms2_sel == T,scan]
         print('ansel')
         print(ansel)
         if (length(ansel)!=0) {
@@ -609,29 +609,29 @@ update_on_commit_chg <- function(summ,input,ptab,ltab) {
         
     }
 
-    tgts <- c("ms1_rt","ms1_int",names(n_qa),"ms2_sel")
-    srcs <- c(list(n_ms1_rt,n_ms1_int),as.list(n_qa),as.list(n_ms2_sel))
+    tgts = c("ms1_rt","ms1_int",names(n_qa),"ms2_sel")
+    srcs = c(list(n_ms1_rt,n_ms1_int),as.list(n_qa),as.list(n_ms2_sel))
 
-    the_row <- tabkey(summ,kvals=kvals)
+    the_row = tabkey(summ,kvals=kvals)
     summ[the_row,(tgts):=..srcs]
     summ[,scan.1:=NULL] #FIXME: an.1 pops up somewhere.
-    qflg <- QA_FLAGS[!(QA_FLAGS %in% "qa_pass")]
+    qflg = QA_FLAGS[!(QA_FLAGS %in% "qa_pass")]
     summ[the_row,qa_pass:=apply(.SD,1,all),.SDcols=qflg]
     summ
 }
 
 
 get_mprop_ms2_metadata <- function(ltab_entry) {
- res <- list(rt=NA_real_,int=NA_real_,qa=character(0),ms2_sel=F)
+ res = list(rt=NA_real_,int=NA_real_,qa=character(0),ms2_sel=F)
 
  if (NROW(ltab_entry)==0L) return(res)
  
  res$rt = ltab_entry$ms1_rt
  res$int = ltab_entry$ms1_int
- z <- ltab_entry[.SD,.SDcols=patterns("qa_ms[12].*")]
- lqa_vals <- as.list(ltab_entry[,.SD,.SDcols=patterns("qa_ms[12].*")])
- qa_names <- names(lqa_vals)
- res$qa <- qa_names[as.logical(lqa_vals)]
+ z = ltab_entry[.SD,.SDcols=patterns("qa_ms[12].*")]
+ lqa_vals = as.list(ltab_entry[,.SD,.SDcols=patterns("qa_ms[12].*")])
+ qa_names = names(lqa_vals)
+ res$qa = qa_names[as.logical(lqa_vals)]
  res$ms2_sel = ltab_entry$ms2_sel
 
  res