Clear last imported folder when a new import is made
In RefWorks original, when you import a reference set, the Last Imported folder was reset, so only that import is contained in the folder.
Now, "Last Imported" isn't last imported, it's ALL references imported in the last 30 days!
At best, it now requires the additional steps of selecting and clearing references from the so-called last imported folder before you import new references; and if you forget, the old references are left in with the new references, making it harder to work on only the new references.
If you insist on keeping it this way, then rename the folder "Recently Imported." If there are users who want to have quick access to recent references (which should be a lot less necessary now that the Projects functionality has been implemented), there could be a toggle between the two options.

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K.Clement commented
Idea was from 2019. With current sections in the imported folder by time / date, I do NOT want the folder to clear every time on a new import because that would lose functionality of going back to a recent set.