Trimming panels after surface paneling

Para 3d Surface controller does not deal with trimmed surfaces and non-quad polygons in boundary of a trimmed surface. To solve this issue you need to map the entire surface (untrimmed surface) and then trim the result geometry with the border you like.
The process is still parametric if you use Para 3d compound node.
In case you have trouble following this tutorial please make sure you have the latest Para 3d (4.64 ) and try to create a reference copy of the first compound node and add a weld vertices modifier.