Mechanical – non-electrical footprint, e.g., heat sink or mounting bracket.Standard – standard electrical footprint loaded onto the board always synchronized, always in the BOM.Type – use this field to determine the type of footprint.Description – use this field to add a meaningful description for the footprint.Name – use this field to specify the footprint's name.Double-click a footprint in the Footprints region of the PCB Library panel.With the desired footprint active in the main design window, use the Tools » Footprint Properties command from the main menus.The dialog is accessed from the PCB Library Editor in the following ways: This dialog allows you to specify various properties for the active footprint in the current PCB Library document. Two iterations of the PCB Library Footprint dialog: on the left, the dialog as it appears when access from a file-based PCB Library document on the right, the dialog as it appears when defining a footprint from a Workspace.