There is no native option in the choice component, but there are some other options.
- One would be to implement something like this:
Click → Reset Multiple Rows At Once
It’s not exactly a simple solution, but one to consider. - Another option is to create a joined list column that returns a comma delimited list of user emails. Then you can use that joined list to write that comma delimited list to another column with a button action, or clear that destination column with another button action.
I guess it all depends on where your choice component is located, such as a detail screen, add form, edit form, form, or custom form.