After a boolean is selected, I need the last month of every quarter that follows to be selected
Currently, when I select a boolean in my R21 (that is dimensioned by quarters, ss2) I get the last month of the quarter selected in my C76 module(ss). How can I make it so that once I select the boolean, the last month of every quarter that follows that quarter becomes selected as well. For example: I select Q1 2023. March 23, June 23, Sep 23, Dec 23.... gets selected.
Thank you in advance