Import from Access to hide and ignore Msys tables
If you have set your nav pane options to show system objects, they should not show in the Import list.
B. Clothier commented
I should point out that I've used Import to import MSysResources table to move a theme and images from one file to another, so it's not entirely without merits. I do agree, though that it could be done better. I'd probably sooner vote for an ability to filter the objects in Import List or to have a categorized rather than alphabetical listing so it's easier to keep MSys*** separate.
and an option to import references