slachenman:

Be sure you have the Object Library loaded and the Door Tool selected, open its dialog box, in the upper left hand corner change from Folder View to Find Library Parts, enter "Pocket" in the Keyword field and click on Find.

You should add a Signature to your Profile (click the Profile button near the top of this page) with your ArchiCAD version and operating system (see mine for an example) for more accurate help in this forum.

David