Question

Is it possible to handle two different events in collapsibles? First for the collapsible text (already handled) and a second one for the icon that appears (simulating a button).

Answer 1

There are only 3 events triggered by collapsible content …

create, collapse and expand

See here for the docs

So you cannot trigger a different event for the icon. The only way you could do this is to implement the collapsible content your self – then use the click event.