# Tightening Program Library - Removing a Global Program Subscription from the Distribution List

The global tightening program distribution list is like a subscription list. Whenever a change is made to a global tightening program, the change is propagated to all subscribers. The distribution list manages the subscription.

Select one Global tightening program check box to view the content of the distribution list. The distribution list shows all controllers subscribing to the selected program.

1. Select a controller in the Plant structure workspace .

2. Go to Tightening program .

   The Tightening program workspace shows a list of tightening programs.

   The entry in the column Library link is marked with Yes for the selected tightening program.

3. Select the check box for the selected tightening program.

4. Select Unlink.

   The entry in the column Library link is cleared for the selected tightening program.

5. Select Library in the left-side menu bar.

6. Go to Tightening program library .

7. Select the check box of the removed tightening program.

   The distribution list is updated and the controller name is removed from the list.