I'm glad this tool is helping you! Yeah of course! I have good news, I'm already working on such feature what allow you to choose what viewport will be in sync, also a easier way to set the Master viewport, sync the Local View to all 3D views and etc. I think one more week (maybe 2 due the lack of time) it will be released! Please, if you have any more features idea can you share with me?
Excellent add-on! This is helping me a lot. One suggest: would it be possible to exclude certain viewports from continuous sync? E.g., I'd like to ideally have two windows in sync while one stays constant.