We actually discussed this topic quite a bit internally.
And it's definitely something we want to add.
I wanted a temporary solution where a console would be displayed showing the behaviours that are running. At least until something more visual could be done.
But ultimately we ended up not adding it, instead focused on adding some other missing functions to the behaviours (like arrays, attributes, tags etc.)
I'll bring it up again once hyperPad is at a stable point again.