Hello Leonardo ,
The Restart button is on Ac6 todo list (link)
As a workarround you can do the following :
Step1: press “Suspend”: button to pause my program.
Step2: Go to “Console Window”, type “monitor reset halt”.
Step3: Press “F5” (Single step ).
And your program counter is in the first instruction of your reset handler (typically in your startup.s)
If you dont want that instead of step3 set a breakpoint on your main or elsewhere and resume the code execution to that breakpoint.