Regarding keeping the Source Citation windows (and any other windows) open from FH session to session see the FHUG Wish List.

That has a request for such a feature that if you sign-in to FHUG you can Vote for:

https://www.fhug.org.uk/wishlist/wldisplay.php?wlwlref=534

Ref 534 Preserve all Workspace and Window Characteristics

Mike Tate