Advanced Mapping: STEM DECK SLOT Detection Missing?

hi,

I am trying to configure a custom slot mode that allows for "solo'ing" individual stems.

to do this, i made a modifier button that enters into "SOLO" mode. once in solo mode, if i press the assigned "SLOT MUTE" button for a given stem, then it will mute the other 3 stems. this works fine.

the issue is if i want to solo a different stem WHILE STILLE in "SOLO" mode i can not. as it stands, i would have to EXIT "SOLO", turn back on the 3 stems that were turned off, re-enter solo mode, and solo the newly desired stem.

instead, I would like to be able to change SOLO stems while in solo mode.

to do this, i NEED a modifier condition that can detect IF the individual stems are in a Play state (on/off)

i only see individual SLOT detection for REMIX decks, and not STEM decks.

is there a way to detect individual STEM deck slots? otherwise, if there is not, i do not see a way to implement my desired solo functionality.

thanks!