Middle-button of Mouse is very import in LDtk , but many macOS users (e.g me) love touch pad(Magic Trackpad).
It's no middle button.

So I hope LDtk could support a short-cut key to simulate Middle-button of Mouse , example Alt(Option) + LeftClick .

I know two-fingers-press (not touch) could be used to simulate MiddleClick on Magic Trackpad .
But when I do that , the LeftClick & MiddleClick will both be emitted (maybe a bug ?) ,
Then I could see this:

the left-top corner is wrong .