A file can be opened in an editor window simply by drag & drop it
from the file manager in the main window of FoldMaster. In the same type
also several files can be opened.
If you drop the files on a project file window, all the files will
be inserted into it at the current cursor position. So larger existing
projects can be easily created.
Marked text can easily be copied (with Ctrl hold down then moved) inside
the file simply by drag & drop.