Sequence Editor

During editing of a sequence, all element positions are evaluated immediately when defined and stored as constant values. To modify a sequence it must be selected for editing by the command

SEQEDIT,SEQUENCE=old-name;

MAD enters editing mode during which it only recognises the sequence editor commands, and makes the sequence old-name the current sequence being edited. Editing mode is switched off by the command

ENDEDIT,NAME=new-name;

If new-name is non-blank, it becomes the name of the edited sequence, otherwise the modified sequence is stored under its old name.

Table 5.1: Commands accepted in editor mode

Command	Purpose
SELECT	Select elements to be affected
CYCLE	Change starting point (cyclic interchange)
FLATTEN	Flatten the sequence
INSTALL	Install new elements
MOVE	Move elements
REFLECT	Reflect the sequence
REMOVE	Remove elements
REPLACE	Replace elements
ENDEDIT	Leave sequence edit mode