I have a lot of section planes and it is difficult to isolate the active plane in order to adjust its position when all the section planes are visible. Is there any way to make only the active plane visible?
What version of SketchUp are you using? (Please complete your profile.) If you are using a newer version you could select the section plane in Outliner and then make your changes.
Here starting with the section planes being shown just to show there are multiple section planes.
Note that you can tell which is the active section cut by the orientation of the section symbol to the left of its name.
Thanks for updating your profile, too.