Calc - Button to insert character

A fried of mine (mouse “only” user) would like to know if and how it is possible to add a button to LO Calc that inserts a character into currently selected field.

Microsoft Excel Screenshot:

I think your best bet is to use a virtual keyboard.

He uses his keyboard but just don’t like to use it. He is an average joe user and prefers clickable buttons. MS Excel has buttons for often used characters and he would like to have them in LO too - thats all.

Hi @Klau3, I think what @drone27of1 means is an on-screen “virtual” keyboard like this: