Newbie here, I searched the forums for answers but found nothing close... I hope my question is not outlandish or stupid.
I'm working on a corpus of regulatory documents (performance contracts for government agencies) where each document (mostly PDFs) has dates, a government jurisdiction, belongs to a given agency (the cases), has been disclosed or not, etc.
I imported a classification of the documents from an Excel spreadsheet, that gives me the relevant information on each contract. But the corresponding sources were already in the project, and so my new source classification points to empty documents, while the existing sources are not linked to the imported classification.
Moreover, I am editing some of the sources (editing out foreign content), and since they are PDF the editing implies that I have to re-import the source. Cut-and-paste the content will not work.
Is there a way to change the source each classification item "points" to, preserving its attributes, or do I have to re-encode all the attributes for existing or newly imported sources?