Net Tie – as above but designed so you could not tell a footprint existed at the location where the shorting is to occur always synchronized but not included in the BOM.

Typically used if a jumper type footprint needs to be fitted and also provide shorting in the same location always synchronized and included in the BOM.

Net Tie (In BOM) – for shorting two (or more) nets together in the routing.

Graphical – non-electrical footprint used for a company logo, title block, etc never synchronized and not included in the BOM.

Synchronized if it exists on both schematic and PCB documents and always included in the BOM.

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.

Altium designer footprint library