Problem:
there is a project that has been finalized and consolidated into the master memory. After the fact, the client has updated artwork, so there is a need to manually align and update the TM. There exist access only to the PDFs, so existing segments might have tags that won't be extractable from the PDF, therefore segments in master memory can't be overwritten segments in the master memory and in the end there might be duplicates.
Is it possible to suppress segments based on the source project and upload all new content from the manually aligned PDFs?
Solution:
It is possible to delete all the segments of an import with the History popup: 