"I can't try on mine, as I mucked this shortcut up somehow. I think when I was typing a name to a vst, but hadn't set it to take keyboard control, so sent Sonar a whole stack of shortcuts all at once. Something I should sort out really, as I miss F" Well figured out what I did there, after sending Sonar a mass of short cut instructions, I must have tried CRTL+Z to undo, but actually hit Shift+Z, which sets the track view to Autozoom, making 'F' funtion slightly differently. SO now I have fixed it and found another useful function. All without starting a thread
Also set up a ALT+H as a Unhide Tracks shortcut, so learnt something about setting up shortcuts too.