On screen shapekey value changer?

Hello evereyone

I was watching some tutorials (not blender, other 3d softwares) and they were changing the value of their shape keys by say dragging a ball around the inside of a box (2d perspective) which was actually on top of their 3d view so it was easily accessible.

while in blender the way you change the value of a shape key is to slide a bar left and right which is under a seperate tab, which can be a bit of a hassle while your animating especially if you also have to change between another tab.

So i was wondering if the same could be done in blender as what i’ve seen in other 3d software.

figured it out,
you would just use drivers to change the value

ps. sorry for double posting, that was an accident, not trying to spam