UIButton doesn't detect middle/right click after update?

[sintua]

I updated from a pretty old version of nGUI and I'm still finding a few strange quirks, one of which is UIButton no longer detects middle/right clicks? It looks like it has code to explicitly ignore this... Why was this changed?

I assume the suggested course of action is to use an eventTrigger's OnClick since that doesn't have such a limitation, but I'm not clear on why UIButton blocks it but eventTrigger doesn't; I don't want to switch all of these to use eventTrigger's just for that one to be changed as well in some later version to match?

[ArenMook]

Even trigger just forwards events. Button should react differently to left click, right click and middle mouse button though -- it's actually pretty normal behaviour. Middle mouse button doesn't submit a post if you click the "Post" button here, for example.