It shows Ctrl Shift Alt CapsLock NumLock status on the panel when these keys are pressed.
This extension is specific for US keyboard.
Supports Gnome-Shell 3.18 & 3.20 & 3.22
- Copy keys-indicator@caasiu.github.com to the
~/.local/share/gnome-shell/extensions/(recommend) - Or install from Gnome Shell Extensions
Another more advance and beautiful CapsLock&NumLock extionsion lockkeys@vaina.lt