I would like to have a command that selects the word that my cursor is in and capitalises it. Especially for using in Google Docs.

I assume the command needs to double-click to select the whole word, then  copy the word to the clipboard, and pastes it back with a capital.

I seem to remember there was such a command in KnowBrainer but cannot find it.

Does anyone have a simple script that can do this?