CSGO incremental increase binds

[my flaws burn through my skin]

is it possible to do binds that add 1 to previous value
i was thinking of doing { bind uparrow "cl_crosshairsize +1" } but it doesn't change value to 1, instead it makes the value increase by 1, how?

[TrueEvil]

You could probably bind it to toggle between a lot of values that you preset but eventually it would wrap around to the beginning.

There's probably a better way to do what you're asking for but I sure as hell don't know about it.