I think you're looking in the wrong panel. The "Add Action" button is in the timelines panel, right? That button is for when you're editing a timeline, which you're not in this case.
To add an interaction to the button (e.g. "when I click on this button, go to this other page"), select the button and then click "Add Interaction" in the interactions panel.
thank you for reply
but also command "add interaction" doesn't work, so when i click on hud
convert artwork to component > button (up, down, over or disabled)
i can't do anythig because also +add interaction doesn't work
It is as if absence of commands
like "on click" does not exist, in its place there is an empty space
that i can not click
i don't know
i try to unistall and re-install the program three times
but the problem is always the same
Try choosing "Window > Reset Workspace".
thank you very much
i resolved the problems after install for the fourth time catalyst
maybe i did somethings wrong before