Lock
To get the Lock keyword in the command line, type Lock or the shortcut Loc in the command line.
Description
Section titled “Description”The lock keyword is a function keyword to lock objects.
A locked object is indicated by a yellow lock icon 
. A locked cue is indicated by a black background and a red font in the sequence executor sheet. A locked executor or sequence is indicated by a red executor number or red sequence number in the mini executor bar.
A locked object can not be changed or deleted.
Syntax
Section titled “Syntax”Lock [Object-list]
Lock Off [Object-list]
Example
Section titled “Example”- To lock cue 3 of the selected executor, type in the command line:
[Channel]> Lock Cue 3