When I have to cut the supports off the a larger object, it becomes increasingly difficult to cut away supports once I have to reach in more than an inch or so. I’ve tried cutting up the support base with a hacksaw, and found it saves a lot of time cutting away supports. Making the support base out of multiple tiles would make this job a lot easier. The build platform would support the individual tiles just fine, and if the gap between tiles was small enough, you should still be able to peel the part off the platform easily enough.
Not a bad idea. Right now I take some angle cutters and cut right into the base. It usually makes a crack that runs straight across to the other side, effectively breaking the build base into smaller sections like you are suggesting. It would be nice to automate this.