I have been on the hunt for what exact shortcut the controller hides from us. But there is a steam menu (controllers, advance, show more, at the button) that shows them!
Quickly want to change your volume? Try steam key + left joystick!
Sadly you can not change anything here, altought the menu shows you you can, nothing will be saved after you leave a menu. (I’m not a fan to put the left mouse button on the right button)
A few of them I manually found before written out, also for the people without images:
hold A + R1 + Steam
To use Puck wireless mode right
hold A + L1 + Steam
Start Puck wireless mode left
hold B + R1 + Steam Start Bluetooth mode
When on (solid white)
Steam+Y Turn off quickly
Hol steam (10s) Turn off
Steam + left joystick up/down Change volume level
R4 + R5 + L4 + L5 + Steam Backpack mode (ignore buttons until this combo is used again or USB)
Steam + Right trackpad/joystick Mouse movement
Steam + X On screen keyboard
Steam + R1 Take screenshot
Steam + Menu ALT+TAB
Steam + D-pad right Enter key
Thank you!
After connecting the controller to the Shield via Bluetooth, I am able to navigate the menus with the D-pad. For some reason I wasn’t able to use the controller to use the on-screen keyboard when searching, either using the D-pad or the right touchpad as a mouse. Maybe I am missing something there. I installed the Steam Link app and steam recognizes it as the Steam controller with all the functionality you would expect.