Used by
Client? Used by
Server? Can be set in P4CONFIG file?
otherwise, vi. otherwise, notepad otherwise, edit. If EDITOR_SIGNATURE is set, then the program with that four-character creator;otherwise, SimpleText.
The regular Perforce commands that use forms (and therefore, use this variable), are p4 branch, p4 change, p4 client, p4 job, p4 label, p4 submit, and p4 user.