In the Search box of the Bar, enter a search string and click Search
.
The search results list appears with available catalogs displayed.
Right-click the selected catalog, and click Explore.

The Catalog Editor appears with the selected catalog displayed.
Right-click the catalog structure and select Expand All.
Select the desired chapter and click Edit > Lock
or right-click the selected chapter and select Lock
, to lock the chapter.

The chapter along with all sub-chapters and items are locked accordingly. A message appears on the top right corner of the screen indicating that the command is successful.

A
and
appears before the chapter and items respectively indicating that the chapters and items are locked.
Select the desired chapter and click Edit > Unlock
or right-click the selected chapter and select Unlock
, to unlock the chapter.

The chapter along with all sub-chapters and items are unlocked accordingly. A message appears on the top right corner of the screen indicating that the command is successful.