I can't seem to get an answer to this, I use Visual GDB so I can debug fine with Visual Studio, I just can't understand what that ST Link gadget is for or how you'd use it.
https://www.amazon.com/Microcontrollers-circuit-debugger-programmer-emulator/dp/B00C7WDTLG
https://www.amazon.com/Microcontrollers-circuit-debugger-programmer-emulator/dp/B00C7WDTLG