As you can see to my thread below, I feel that is a huge minus of Robot not to be able to design easily a foundation system that consists from isolated foundations that are connected with Tie beams (inverted T section). This is a common practice to use foundations like this to steel structures and other softwares like cype can do it.
Thread
https://forums.autodesk.com/t5/robot-structural-analysis-forum/isolated-foundations-with-tie-beams/t...