Fire once per second?

I want to be able to hold down the left mouse button to fire (not click), but I only want it to fire once per second.

I am currently using "Left button is down" to trigger the fire, but that is happening 60 times a second.

How do I make it fire only once per second?

construct.net/en/make-games/manuals/construct-3/system-reference/system-conditions

Thanks so much - that did the trick!