Standable support
Standable trackers are not currently read by the mod. I'm not sure how the mod is done but i think it's looking for Vive Trackers only, so anything that emulates a vive tracker and is assigned correctly through SteamVR is read without issues, but apps like standable are not detected by the mod even when set up on SteamVR, and it would be very cool to have support as the locomotion of sitting and laying down is much better than the default IK
Thanks for the suggestion! I hadn't heard of Standable — seems pretty cool! I'll hopefully have some more time to investigate this shortly, but for the time being, have you tried taking a look at these VMT instructions? You obviously wont have the vmt_* entries at step 9, but there may be some Standable-related options there instead and you could follow the rest of the instructions to bind them to the htcvivetracker pose.
I've been testing a bit with the VTM instructions It appears that Standable is reported as Vive Trackers on SteamVR Bindings, so VMT setup is not possible They're also not reported in game even though they're set to their respective positions (foot and hips)