Hi, I have not been around the forums too much lately, however you can usually catch me on the slack chat.
Originally I talked of doing an action release for VRTK4 (like I did with VRTK3), however, after consideration, I decided not to support VRTK4, but rather the unity native XR input solution.
Current repo:
https://github.com/dumbgamedev/UnityXRPlaymakerNote that the XR input solution from unity uses a different architecture than VRTK3, however, in many ways, it fills somewhat the same void.
Currently, I have actions for getting all the controller inputs values (0 - 1, etc) and controller states (button-down). As well, it includes a proxy script for sending controller inputs to playmaker FSM by fsm events. (It also includes Unity Events and standard delegate/events if you want to use those as well).
More actions will like be added soon. If you need assistance, best place to find me is on slack:
https://invite-playmaker-slack.herokuapp.com