How to make an analogue of a checkbox using buttons in Delphi?

Question

Delphi

The task is this. Delphi 7 environment. There are several buttons (let's say 20). When you press any of them, it is fixed in the pressed state. All buttons can be pressed at the same time.
I tried with SpeedButton, but only one button turned out to be pressed.
Maybe someone knows how to be?
Thanks in advance.

Answer 1

Try to set different GroupIndex for all SpeedButton and set Doun = True