They did assign a key. It's the mouse button when focused on something.

Originally posted by kaito:

I dont get the reason why clicking on object giving you info instead doing an action, it felt so counterintuitive to move the cursor away, it would be better to assign a key if player wants to find out info

I agree, it is a strange mechanic. I keep doing it because, as you say, it's counterintuitive to move away the cursor but also having to wait for the info to be loaded so you can actually do what you wanted to do makes it annoying