adjust radius of VSM rendering and quality of CSM is possible?

I’m trying to adjust VSM’s maximum radius so that CSM starts charging at a greater distance, but I’m not finding the command to adjust it. I looked in r.shadow.virtual and r.shadow.csm, but didn’t find anything. Am I looking in the wrong place, or is it really not possible to make this adjustment?

I would also like to know if it is possible to adjust the quality of the CSM, as the transition from one to the other is very rough, as the quality of the CSM is much lower than the VSM

From what I understand, CSM creates layers starting from the worst quality to the best quality, and the more cascades, the better the rendering of the last one will be (which will be the closest to the object)

I tried using the r.Shadow.MinResolution=4096 command to reduce the number of cascades, and increase the range with r.Shadow.DistanceScale in which exchanges occur, but it seems that r.Shadow.MinResolution doesn’t work unfortunately.

the command is

r.Shadow.MaxCSMResolution