New track related Extension: assigne multiple tracks

it seems i can only activate ARA extentions one track at the time. if editing BV’s with several parallel tracks i have to do the process for each single track. even with Quick Edit active and several tracks selected it only applies the extension to the first selected track.
that is a very slow workflow and almost negates the functional gain of this new feature. if i select several parts and apply the ARA extention it works as expected that all selected parts are opening together in the extension.
aslo: still no option to assign shortcuts to ARA extentions…