RTDE reset registers

I am using force_mode_set_damping() to set it to value other then the default 0.
If I run the control loop with force_mode_set_damping(0.5) and then remove that part of the code, unless I restart the robot the value will be stored somewhere in the registers.
I would like to write a code that will reset all the registers, or at least ones that store the value of force_mode_set_damping(value).

How can I find out what register stores this value so that I can reset it?
Or maybe there is some prettier way to do it, that resets any stored values, so that I wont have an issue of old values being stored in memory