[Timeline plugin] Can’t select Formula type column in Duration (days)

[bennhatton]

Hi, it’s funny, two years ago I posted about not being able to use formula type columns in Start date or End date settings :

@bennhatton

Hi everyone,
While trying to use the timeline plugin, I discovered that I can only select columns of “Date” type in the Start date or End date settings. However, columns of type “Formula” should be selectable (eventually adding a test to ensure that the output value is a date)
Bests,

Benjamin

Now, I encounter almost the same problem while trying to use formula type column in Duration (days) setting this time : only number type columns seems to be allowed. Do you think you can solve this problem ?
Bests,

Benjamin