Battowsai

After i upgraded to 1.4x it was there. seems it was added during a patch

Hi, i would like to know if there is a way to upgrade a single ship at a location where multiple ships are present. Like you have 4 Ships on the same point and you want to upgrade one of them there. I was not able to get to the menu you have when only a single ship is in that place. So i could not yet press the upgrade button when multiple units are present. I hope you understand what i am talking about ^^ i know that "d" brings