Fun Fact: MAPO was the name for an early Imagineering building in Glendale.
https://sites.disney.com/waltdisneyimagineering/our-story/
It
might be possible to increase the number of blocks on the monorail resort beam. I'm not sure there is enough idle time in the resort-line stations to support another train though.
For folks who want to know more about blocking: it's quite similar to the way that roller coasters with multiple trains keep from colliding.
Unlike with roller coasters, the monorail beam blocks are not delimited by physical brakes/chain dogs, but instead markers on the beam and sensors on the trains. So I
think they could add more markers, but I am not sure how many blocks are already on that beam.
And finally, the fatal monorail crash some years back happened during a MAPO override. The accident report is quite interesting reading.
https://www.ntsb.gov/investigations/accidentreports/reports/rab1107.pdf