I have a shapefile of 10,000+ county polygons. Of these, I've identified ~5,000 that are geographically too small, and I want to combine with their immediate nearest neighbor, naming the combined county A and county B "A - B"

Current workflow:

  1. Manually select the two counties I want to combine
  2. Click "Merge Selected Features"
  3. Manually specify output fields and concatenations
  4. Click "OK"

I want to be able to manually select the two counties (some human judgment is required for that part), then run the model so it runs steps 2-4 only on those two selected features.

I've been digging around for a while and can't seem to find an answer for this. This was close, but I will have thousands of these pairs, and I don't want to select two, save them as a new file, then run the model that merges them.

That asker's previous question was also close, but I'm wondering if it's possible to do this 100% in the graphical modeler.

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