Exporting vgps to GC.com's bookmark lists is an important feature in p-gc, however, when it comes to exporting to a new list, p-gc can't create it, it says:
The bookmark list must already be created at Geocaching.com; this cannot be done via the API
Perhaps this was true long time ago but it is not true at this time. The GC Live API supports a method to create new bookmark lists:
CREATE LIST
This method will create a new list. It will return the created list.
Path: /v1/lists
HTTP Method: POST
Response Type: List
Response Codes: 201, 400, 401, 403, 404, 409, 422, 500
Restrictions: Basic members restriction applies. See Membership Restrictions section for more info. Users can only add bookmark lists and have a maximum of 100 bookmark lists. Opted-out user will return a 403 Forbidden status. See Third Party Data Sharing for more details.
Please add the create list function to the export vgps dialog as it simplifies the workflow a great deal. It removes the tedious work of switching back and forth between p-gc and gc.com. Besides, p-gc making the API call is much faster than clicking interactively through GC.com's slow UI.