Plug-In Manager - little workflow detail in Manage Presets dialog

Manage Presets dialog: after deleting a preset, none of the listbox items are selected.
I'd suggest that after preset is deleted, nearest preset below the deleted item will get selected.
 
This change would make it faster to delete presets one by one (Alt-D + Enter to delete, then up/down arrow to select next or press Alt-D + Enter to delete the next preset).