Multiple interactions with on click trigger

I’m using “on click” from the prototype function with an open overlay.
But I’m facing issues and am not able to resolve them.

What I want is when I click one button, it brings 2 overlays to the screen.
I don’t have any problem creating for 1 overlay, but when I try to use “Add action” I’m able to add another option under existing on click modal, but I’m not able to find it on the prototype. I can only see the first element but not the second one.
I’m assuming it is a bug or if works as intended can anybody help me to solve this problem?