I have 2 buttons that I need to place in relation to each other:

The content and width of the buttons vary, so I can’t just place them next to each other in storyboard. Can I use trailing or leading space in storyboard and make the relation the other button instead of the superview?
It’s very easy to do in IB — just select both buttons and add the “horizontal spacing” option from the constraints button (the one that looks like an H) down in the lower right corner of the window.