A protected sequence is a sequence which, generally speaking, cannot be modified, and whose sequence grid cannot be viewed in the Sequencer. Protected sequences can, however, be played just like any other sequence; they can be scheduled in your shows, they can be played in the Sequencer, they can be downloaded as standalone sequences, and they will control your lights.
There are some things about a protected sequence which can be modified:
•The location of the media file (via Sequence > Media File)
•The preview (via Sequence > Assign Different Preview)
•The Windows shell command (via Sequencer > Windows Command)
To create a protected sequence, open the sequence which you wish to protect, and then select "Export as Protected" from the File menu. It will prompt you to select a file name for the protected sequence. In S5, protected sequences have a different file extension than regular sequences: .LORPROT versus .LOREDIT
The ability to create a protected sequence is available only with the Advanced license level or higher.
A protected sequence, as displayed in the Sequencer