I am now reviewing all of the Feature Requests, this will take some time, patience please.
Selecting a component hidden by another is a matter of finding hidden component in attribute panel
Bring Top - Arrow Up and Bring Bottom - Arrow Dn have been implemented
Bring Top will effect component id and set it as 0
Bring Bottom will effect component id and set it to the highest on the page
This will overall effect the order (done by component id) of how page refreshes
Several reorderings may be necessary to get to user tastes.