Adding constraints like in Xcode?
if this would be possible this plugin would be dope.
What I mean by that exactly:

In XCode you can select a layer, hold ctrl, drag from your layer to the next layer above it for example and set the constraint to be the top spacing to the other layer.

I know this is very advanced, and I'm not sure if this is possible with the sketch plugin api or if they would have to do that on their own, but that would sick.

Thanks already for the current state of the plugin.

And a minor suggestion: could you check the box of a constraint automatically as soon as you enter a manual value?
