Redeem keys without downloading

Regarding the automatic downloading of activated products:
There is no specific option you can select to not automatically download the product activated, but it can be done by cancelling at a certain point of the activation process.

1. After you are presented with the window informing you of 'Activation Successful!', click Next and proceed to the next step.
2. The next window will inform you that you are about to install the product that was redeemed. In this window you can press the Cancel button or the X button in the top right.
3. The game will still be added to your library but the download will not start.

This is actually weird, because I thought they changed this. Mine hasn't auto-installed after key activation for over a year, but just started doing it again. It used to just add it to my Library and I'd have to go install it from there if I wanted to play it. Made redeeming bundles where I only want 1/3 of the games right now much easier to redeem. Just wish I could get it to go back to that behavior.

Right now it is even worse because if I redeem DLC for a game that isn't currently installed, it gives an error message, even though I didn't want to install it right now anyway. I don't even get to cancel, though it is added to my library.

Also, and definitely not a solution, but if you redeem a game from a system it can't be played on, like redeeming a Windows-only game from a Mac, it won't try to install it.