Toolbar "Go"

The Go toolbar offers the following commands:

Stop	Stop playing
Step back	Step back
Start	Start playing
Step	Step forth
Pause / Replay	Pause play / Set replay mode
Set start	Set current frame to the start of the buffer
Replay back	Replay back
Replay step back	Step back in replay mode
Pause replay	Pause replaying
Replay step forth	Step forth in replay mode
Replay forth	Start forth in replay mode
Set end	Set current frame to the very end of the buffer