To Edit Filters Assigned to Object Snaps (AutoCAD Mechanical Toolset)

1. At the Command prompt, enter OPTIONS.
2. In the Options dialog box, select the AM:Preferences tab.
3. In the AM:Preferences tab, select Snap Defaults.
4. In the Snap Settings dialog box, choose Filters.
5. In the Entity Filter dialog box, choose Edit.
6. In the Edit Entity Filter dialog box, make the necessary entries and choose OK.
7. Click OK in all dialog boxes.