Location Triming

I've seen this discussed a few times over the years, so just wondering if there's an update on the pipeline. End goal: to be able to create a location map made up of not only captures of the same area, but to be able to 'but up' neighbouring captures. For example capturing the progress of a new estate as it expands. The inability to trim layers of the same capture area isn't a big deal. I mean, it would look a lot cleaner, but as they stack up you can show/hide captures and it does the job of being able to see changes. What would be really good, is if each map could be trimmed using a kml at the processing/re-processing stage. Then it wouldn't need to be done with hand drawn polygons that simply hide detail. No one uses the bad data around the edges anyway. I say chop it off completely. Using a kml would make it repeatable for the repeat captures of the same area. I have no idea how hard this is to implement but I think it would be a hit. Trimming/clipping using kml could be part of the GCP processing step. Idea for workflow is, generate standard map as usual, then just like there is reprocessing for GCP correction, add your KML and the result is a trimmed processed map. Cleaner maps, cleaner Location maps, and the ability to create Location maps with adjoining areas. Also cleaner downloads. Slightly smaller outputs, no useless data around the edges. I'd even accept if this caused a small increase in fees. Keen for thoughts.