Specify the name of the sequence you want to edit.

The name can contain embedded spaces but trailing spaces will
be ignored.   NOTE:  The name should NOT END WITH THE "+"
since that has special meaning (implies a Waited Sequence Start
when used in a Controll Sequence).


If the Sequence does not exist, then one will be created that will
contain 15 "Null Events" with a start time of zero.

When done editing such a new Sequence, you should delete excess
Null Events at the end of the Sequence.  Note that when a new
Sequence is created, it is temporary until your first SAVE command
or the END command.  I.e. if you exit EDIT without using either a
SAVE or END command, then the new Sequence will be deleted.
