It seems like it's not possible to use the ingame chat if you play with a gamepad. It would be great if that would be possible in the future, I miss the possibility to use the ingame chat.

In general, it would be cool if you could switch between gamepad and keyboard + mouse while playing. Right now you're forced to use one of both, but you can't use both at the same time. As example I would like to use the gamepad for inventory managing and so on, but would like to use keyboard + mouse for something else.