Variable add and Variable subtract

Hi,

Good day! I find "Variable Add" and "Variable Subtract" very useful especially the wrap around feature of them. It would be great if both ends are changeable as there are cases where the bottom number is not 0. For instance, if I could set the wrap around to be a range instead such as "1 to 7", "1 to 31", or "%par1 to %par2". I believe it would have greater flexibility if this is the case.

Thank you