My colleague Christopher Seidl has made some excellent videos explaining more about Keil Studio Cloud and giving pointers on version control, web flash and debug and code management. You can find the playlist here: https://www.youtube.com/playlist?list=PLKjl7IFAwc4QAX8cekHi4DyWboT8eTj7b
There’s a video specifically aimed at Mbed developers here: Using Mbed projects in Keil Studio - YouTube
Let us know what other topics would be helpful in making the transition to Keil Studio.