In version 24 look for support in Lua as:
--Here is the SLIDERV2 format: name, value, start range, end range, increment, decimal places, units
--For example for Angle
--@TBCONFIG SLIDERV2: Angle, 0, -360, 360, 10, 0, Deg
I will flag this as Planned for v24 even if item 1 isn't covered. That is the advantage of separate posts for each request.