Clicking on button with ControlClick

I've bumped on problem on sending controlclick to a minimized client.
I'm trying to use ControlClick on netbalancer software to utilize net performance and I have to click on a few buttons when requirments are met.

There is no controlID on any button, so I used coordinates, it will be run on only one pc with same resolution so using coords is not so hacky solution but now I want to make it work even if client is minimized.

Using same method will only get button highlighted like mouse was howered over it but it wont be clicked.

Do anyone of you have any idea how this can be done or what I'm doing wrong?

Thanks for your time.