I just can't play this. Sometimes when I click directly on the bean I want to add it just randomly adds one of the other beans that I very clearly didn't click on.
The "problem" is that clicking chooses whatever bean is currently selected. You need to press A/D left/right to select the bean first, then click (or press enter). I'd highly recommend the dev change that, since I had this happen a dozen times until I figured out why I wasn't getting the bean I clicked on.