I switch between Mac and Windows on a McHose GX 87. Following are the shortcut keys to make life easy

• Fn + A – Mac – In MAc mode, Win key becomes Option and Alt key becomes Cmd. Function keys behave as Mac keys. Use Fn modifier to make them work as regular Function keys
• Fn + S – Windows

Bluetooth Device Switching

• Fn + W – Device 1
• Fn + E – Device 2
• Fn + R – Device 3

Hold for 3 seconds to enter device pairing mode

USB Dongle 2.4 GHz Pairing – Fn + Q – Hold for 3 seconds

Fn + B : Check Battery