Advanced Settings – Hot keys Tab :

You can reset the hotkeys at any time in the Advanced Settings window.

OptionShow/Hide:
 Show or Hide the program immediately with the default hotkey: Ctrl+F8
OptionOpen All Disks:
 Open all disks with default hotkey: Ctrl+F3
OptionClose All Disks:
 Close all disks immediately with default hotkey: Ctrl+F4
OptionOpen/Close specified Disk:
 You can open or close a specified disk with the default hotkey: Alt+Disk Letter

Advanced Settings - Hotkeys Tab