Docs can be imported from spreadsheet, CSV at least if not XLS (don't remember). Your spreadsheet (Excel/Calc/PlanMaker, etc.) has more powerful editing tools like search and replace and drag-and-fill than does the Do-More Docs editor. I'd make the external spreadsheet copy of the docs the "official" copy, and only ever import to DMD. That's what I did on the SLC in similar situations, even 'automated' the station names by having them refer to a page where I just typed in the names once, then all the cells that used that name pointed to the sheet where I typed them in. Then export the sheet with all the docs as a CSV and Bam! -- like 6000 records in 10 minutes.