Filter multiselect question within a roster

I have a roster with multiselect question,I want to filter, in such a way that if an option has been chosen it should not appear in another roster multiselect question

If I’m understanding your scenario correctly, you have the same set of answer options triggering roster 1 and roster 2. If that’s right, here’s a quick sketch of how have answers selected in one multi-select can be hidden in the other mult-select question.

Perhaps see Public example User questions and common patterns (section Tourism seasons):

@Sfundo , has this been resolved with the above suggestions?