Menu: Edit -> Paste
Accelerator: Ctrl + V (for Paste As Child, see below)
Toolbar: 
(for Paste As Child, see below)
Context menu: Filter / subfilter -> Paste
Drag and drop: See the descriptions under the topics Cut and Copy.
This function is used to insert a filter or subfilter from the clipboard into the currently selected Custom filter in the filterset pane. In detail, the Paste menu and Paste context menu items have the following subitems:
· Paste As Child: inserts the [sub]filter as child of the selected filter
· Paste Before Selection: inserts the [sub]filter before (above) the selected filter
· Paste After Selection: inserts the [sub]filter after (below) the selected filter
If the filter already exists and isn’t empty, a new copy of the [sub]filters in the clipboard will be inserted, under a slightly modified new name.