Resolve "Select mode: Export to CellDesigner does not work"

Closes #329 (closed)

added 2 commits

• 56cf1072 - self reactions are layouted properly
• b2b440df - additional mapping for reactions and modifiers

Compare with previous version

unmarked as a Work In Progress

enabled an automatic merge when the pipeline for b2b440df succeeds

merged

mentioned in commit 6754f573