Trigger Small Dialog Box Action After Medium Dialog Box Completion in Appian

I have an action that opens in a Medium Dialog Box Size and would like to know if it's possible to automatically trigger another action in a Small Dialog Box once the initial action is completed.

Is there a way to dynamically change the Dialog Box Size during process model execution? Alternatively, can an action with a Small Dialog Box be automatically called from within a Medium Dialog Box upon completion?

It's important for the second dialog to remain optional, giving users the ability to cancel it with the "X" icon.

I appreciate any insights or suggestions on achieving this functionality.

Thank you in advance for any insights!