Does Aras (specifically 11SP15) support the ability to add optgroup elements to a drop-down list?
The default Dropbox fields do not support optgroup elements. However, you could achieve this by using an HTML field and adding your select with your optgroups and options there. This would also require you to code the interaction between the user picking an option and the value of the property being set.
I'll file this as an enhancement for a future release. I've never heard this request before, but it looks really helpful. :)
Aras Labs Software Engineer
I wonder if it is possible to reuse the custom-search-mode community project for this purpose?
I can confirm that this one works:
Code for HTML elements starts around line 72:
When it works in a custom search mode, it should also be possible to do something similar in regular Aras forms. But I never tried...