Filtering the Footprint List
If the selected component and/or library is highlighted when the one or more of the filtering options is enabled, the displayed footprint list in CvPcb is filtered accordingly.
The icons enable and disable the filtering feature. When the filtering is not enabled, the full footprint list is shown.
Without filtering:
Filtered by the footprint filter of the selected component:
In the component library editor in Eeschema, the footprint list was set using the entries in the footprint filter tab of the component properties dialog as shown below.
Filtered by the selected library.
The filtering can be combined to form more complex filtering to help reduce the number of footprints in the footprint pane.