Scale up selected UI button


Trying to get my head around this one for a couple of hours now… How can I scale up only one button at once (and minimize the second one) after pressing a button only once? An issue with flip flop is that it keeps a record in a registered press and if will press the same button after it was minimized by increasing size of other buttons it will try to minimize it first causing me to press the button twice. Tried using multigate option as well, didn’t seem to work. Any ideas? Worth to mention, I am planning to have 12 of these buttons at the same time…