Review on 🔑 Remote Keychain for Liftmaster, Craftsman, and Chamberlain Garage Door Openers by Don Leblanc

Let's start with the fact that I'm pretty good at everything. I have 4 garage door openers so it makes sense to have this unit hence the purchase. The 2 openers in the attached garage are purple and the 2 openers in the detached garage are green. I have not yet found anyone who can help me with my problem. The problem is when I program purple both buttons open both doors. The same goes for green. The buttons seem to send the same signal! Is there a way to delete or reset this thing? The garage stop website is practically useless to set up, the videos are irrelevant to the topic. I give the seller the opportunity to give me clear programming instructions, otherwise I will return. I would imagine there is a way to reset this. I found a YouTube video but none of the procedures work with the R40 I have.