*Step 4 - If you are attaching only the TOC you must click “Attach Table of Contents only” below your selection grid.
Step 5 - Click Attach
Linked Compilation can not be deleted
If a Compilation is already attached to a Doc Code it can't be deleted until it's un-linked from the Code.
To unlink a Compilation, navigate to the Code List and click on the unlink icon.
More options under Tools column: