UI, usability (Restart, Results pane)
Minor suggestions or options,
1: restart button (Execute, Break, Cancel, Restart) & customizable shortcut for it.
2: results pane growing results backwards, the newest line(s) on top of the pane, this would help debugging and testing hardware (IoT:s) a lot.
I know, there is auto scroll option, but LIOT (last-in-on-top) would be nice.