I've flown a few types of helicopter, amongst which the Apache D. Some types will drop straight to the floor, but newer ones default to center at about cruise torque. Most have a screw-like ring around it that you twist to increase friction, thus you can control how floppy or how stiff the collective is, or set it fast completely. Having it set fast is obviously not recommended, as in most emergencies you're going to want to lower the collective immediately.
But anyway, so when you're in cruise configuration and want to check a map, or flick a switch, you can, with friction on. The apache D can do most things hands-on the collective, with a cursor control allowing you to manipulate the MFDs from your thumb on the collective.