Please do not use this as a source since it lumps your patterns together with patterns by other designers who also use this non-specific name.

Instead, open the pattern page of the pattern you want to set to “unavailable” in “Edit” mode, go to the source field, and set the existing source to “unavailable” in the drop-down menu to the right of the source name.

More information about how to add patterns can be found on these pages:
For free patterns, click here
For paid patterns, click there