No, it's not possible without changing the code, because this slider doesn't directly drives a debug setting but is instead read/set from the floater code itself.
They are not weird, there are simply UI elements that directly drive a debug setting (those elements with a control_name="DebugSettingNameHere" option in their XML declaration), and others that are read/set via specific routines in the code (because they don't correspond to a debug setting, or they need some pre or post-processing).