How to use variables in Custom Question in dashboard

I have a custom question that needs to be created by combining two saved questions. The saved questions were created using a native query and contain a variable each. However when I try to create the custom query, I get the error as below
Cannot run the query: missing required parameters: #{"CALENDAR_2"}

How can I select the value of Calendar_2 and even be able to add it to a dashboard.

FYI - CALENDAR_2 is the name of the variable in the 2 saved queries.

Hi @sreenath.dressler
It's currently not possible to pass-thru variables from nested questions: - upvote by clicking :+1: on the first post