Command to zoom to fit project horizontally?

This is a move so common in my other DAW that it doesn't even use a modifier, it's just the "0" key all by itself and I use it about as often during a session as RTZ.
 
You know, it doesn't change track height or open or close any folders or anything annoying, or move anything else around, it just zooms out (or in, as the case may be) and centers the project timeline nice and tidy so that you can get an overview. I pretty much use it at least at the end of every take by reflex. Or at least I did until I started using Cakewalk.
 
The closest I can find in Cakewalk is the "Resizes and zooms tracks to see entire project," command, which I quickly assigned to a Control Bar button, but while that does the zoom thing, it also resizes the tracks, which is a silly thing to do when I only have say, three tracks so far and then I get these three TALL TRACKS that I then have to shrink back down which is enough of a pain that it's easier just to zoom the project manually and fiddle around with the scroll bars to center it. I just want the same command without the "resizes." Is it in there somewhere?

What I do sometimes: put the mouse arrow in the upper part of the timeline until it becomes a magnifier. left-click and drag the mouse to zoom horizontal, right-click and drag to zoom vertical.

HI:)
 
I f I have only 3 Tracks and press Shift+F, these 3 tracks fill out the window vertically and the whole project horizontally!
 
But: It makes a difference if you have Autozoom On or Off (Shift+Z to switch). With Autozoom Off all tracks have the same height, with Autozoom On the selected track has its last state height.
 
If you have more than 3 Tracks and just want to see 3 tracks and the whole project, first mark these tracks, press Ctrl+Shift+H and then Shift F.
 
Ctrl+F is for fitting the events in the track.
 
I have Autohotkey in the background, so I would make a Hotkey for Ctrl+Shift+H, then Shift+F, if I need it often! For me it is much faster to pull 2 knobs on my BCR2000 for zooming hor. and vert.
 
Greetz:)
Bassman.