Although a lite/thin client would still be really helpful, or better yet a play in editor like everyone suggests… I am finding I am having to Push Changes far less frequently, I just made a map and I didn’t need to push more than twice, and when I did push it was much quicker than usual (reason I had to push was UI related)
Not sure if I just had a good day cause it relies a lot on server connection it seems… but device property edits or adding devices wise I am rarely having to push changes anymore where as when I noted this in my original reply I was having to push changes after every new device I added and only some edits would make changes without having to be pushed 
This has made it much easier to iterate as I can trust my changes now.