You can lock and unlock a study object (study design, study element, study event, form, section, item, codelist, and codelist item).
To explicitly lock a study object:
The study object is locked, and a green lock icon appears in the Project Explorer.
To unlock a study object:
Note: If you unlock a study object without saving, you are prompted to save changes, discard changes, or cancel.
The study object is unlocked, and the green icon in the Project Explorer is removed.
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To explicitly lock a study object: