How can I set minimum value for slider for example 1? I want to make option which change mouse speed but when I set slider to min value I have mouse speed = 0.

Lerp(min,max,frac)

Ok. Thanks. I didn't thought about this possibility.

EDIT:
Ms.speed(Lerp(1,5,mouse()));

Is it correct? When I go back to the menu mouse speed value automatically set on 5.