Map a controller button (e.g., long press Start) to send using:
If your mouse isn't properly captured after Alt-Tabbing between two Moonlight windows, try Alt-Tabbing to an intermediate non-Moonlight window first. moonlight alt tab
Scroll down to the keyboard section and find Set this to "Always" or "In Fullscreen" . Always: Captures shortcuts even in windowed mode. Map a controller button (e
Mastering the function in Moonlight Game Streaming is the key to seamlessly switching between your game and other applications on your host PC . By default, your local computer (the client) might intercept this command, but with the right settings, you can control your remote machine as if you were sitting right in front of it. How to Enable Alt+Tab for the Host PC Mastering the function in Moonlight Game Streaming is
Open the (the cog icon in the top-left corner before you connect). Locate the "Capture system keyboard shortcuts" setting. Set this to "Always" or "In full screen" .