From what I’ve seen so far, the AMS2 pro will not allow an A1 to use more than 4 colors (same as AMS lite). This is a missed opportunity by Bambulabs. Think of all the A1s out there and how many people would buy 2 AMS2 pros to be able to do 8 colors. Then, those people would have extra AMS lites being unused and possibly even buy more A1s for those AMS lites. Huge miss not tapping into this.
You will not be able to use an AMS Lite and an AMS1/2/HT together. Multiple AMS in a row can not tell at the moment if its work. The Ams its capable to connect them in row and the last to the buffer but I dont know if the firmware can handle it. I also dont have more then one ams to test an also not the firmware.