If you want to prohibit any kind of modification to one or several titles, you can "lock" them. To do so, proceed as follows:
1- Open the catalogue containing the titles you want to lock.
2- Select the titles you want to lock.
3- Right-click on one of the selected titles in your main list and select "Lock selected title(s)":
As a result, the selected titles will appear highlighted in orange and a small lock icon will be shown under "Locked" column:
If someone having access to those titles with ONIXEDIT Pro or ONIXEDIT Cloud tries to modify or delete the titles, a message will show indicating that this action is prohibited:
To unlock a locked title, just right click on it from the main list and select "Unlock selected title(s)":
Alternatively, locked titles can be partially modified if you defined Lock Profiles. Consult Manage Lock Profiles section for more details.