Hi,
For what its worth I am successfully using F12 if I pause SphereTester using the MT4 pause and not the SphereTester Pause. Also I am able to approximate going bar by holding the F12 key down and watching the clock on the SphereTester news window to get me to the minute before the candle change at which point I go F12 keypress by F12 keypress until the first tick of the new bar.

Best of luck
Greg