Graffiti comes with a simple dumb editor. Type lines of text until you're done, then type a . Tilde commands must be typed at the left edge of a line and be the only thing on the line. This may not work if your editor requires a TERM variable or something else unavailable. This is useful for imbedding error messages or logs.
Problem report creation works the same way as append.
The meaning of each of these is the same as that described in the full screen graffiti.