Good afternoon,
I was given a request asking for the customfield (select list (single choice)) to become (multiple choices) for two issue types, and for all others to remain single choice. Could someone tell me if this can be done using Scriptrunner Behaviours and how?
I've seen methods like convertToMultiSelect and others, but have a problem with understanding how they work and how to make a multi-select choices from single choice.



At the moment the view screen shows one value (screenshot_1), when editing the field becomes multiple choices (screenshot_2), but when saving all values, only the last value remains in the field (screenshot_3).