Answer:
Yes, you can. You can export the control perimeter from RF‑PUNCH Pro into the RFEM model as a line. This is possible for all punching forms (supports, wall ends, and wall corners). The corresponding button can be found in result window 2.1 "Punching Shear Design" (see the image).
In the RFEM model, you will then get a line where you can create a "section" for further analyses, for example. Please note that the line must be integrated into the FE mesh of the surface. The setting for this can be found in the general FE mesh settings.