Merge External File...
Merge plan3D files.
Contents
Merge External File with This Plan...
Merge External File with This Plan
Merges an external file with the project currently open in plan3D. If the buildings are in the same place in both files they will overlap. No collision detection is done so any overlapping will need to be thought out beforehand.
See Edit>Move Entire Plan to move a project so it doesn't overlap with a file being merged.
Open
If you just want to open a file, choose Open from the File menu.