What should be done so that when displaying a custom field, the selected elements of another infoblock are displayed at the top of the list?

Question

1C-Bitrix

Custom field type Binding to elements inf. blocks, multiple.
A simple list of elements with flags is displayed. Maybe you can raise these flags up so that they are immediately visible?

Answer 1

You can solve it in a couple of ways:
1) write your own type of UF field and draw the conclusion in it as you need. Here is the class for the UF property of type "Binding to IB element" bitrix/modules/main/classes/general/usertypeelement.php . You can copy and modify it as you need, and then connect it in the OnUserTypeBuildList event
2) write some kind of js code that will connect to the page and sort the option inside the select that displays the elements