For volume adjust I had to replace some actions I didn't use to do this like Flash and Screenshot, but I got it working now.
Was just a KeyEvent like you have for the Back option. Be good if the author can implement and maybe put the option of how many steps to adjust by. I set mine to 2 at a time.
Think I read the OP was still thinking of a better way to implement but this will be good for me until then.
Love this app, so fast, I don t miss navbar on my Nexus 6 MM, compliments!!! Hope to see a backup/restore option soon, it s the only feature missed on this app for me thank you again!!
With settings in my rom, by the way, if you are on android 6 with a rooted Nexus device, copy this apk in /vendor/overlay and it ll disable your navbar http://forum.xda-developers.com/showthread.php?t=1330150 (you ll find apk in first post)Sorry for off topic but have you hidden your NAVBAR ?? If yes, then how do you get it with GMD please ??