in this screencast i show a user how to create a new keyboard short cut
https://forums.autodesk.com/t5/autocad-forum/shortcut-keys-ctrl-alt-shift-not-working/td-p/8771769
Source: Autodesk
https://forums.autodesk.com/t5/autocad-forum/shortcut-keys-ctrl-alt-shift-not-working/td-p/8771769
Source: Autodesk