First thanks to make this awesome tool.
Can your tool support ECS in future?
Thanks for using it ;)
Honnestly for now it's too soon to tell. ECS is not officially released yet. I will wait until they release it before checking how to implement it with constellation.
Constellation is an alpha now and there is a lot of major features I have to implement before(Nested constellation, Improving the editor...). My priority for now is to stabilise all the features as much as I can before adding new ones (My goal is for fall).
That behing said you could open an issue on github to start talking about it with the community.
Thanks for your suggestion ;)