[keyboard-shortcuts] Keyboard shortcut to comment lines in Sublime Text 3

If the shortcut ctrl+?, ctrl+shift+? or ctrl+/ is not working, try switching to another, like ctrl+1, ctrl+shift+1, it worked for me.

{ "keys": ["ctrl+1"], "command": "toggle_comment", "args": { "block": false } }, { "keys": ["ctrl+shift+1"], "command": "toggle_comment", "args": { "block": true } }