Is there a quick way to "fit all" in the arrange window?

Question

Does LP8 have a quick way to fit everything in the arrange window from any magnification level? Something comparable to double-clicking on the magnifying glass in Pro Tools?
For instance, let's say you've made your tracks very tall by control-down-arrowing a bunch of times. Now you want to quickly go back to having every track header showing in the arrange window. At first I thought that the key command "control-option-z" (zoom to fit selection horizontally and vertically) would work if you command-a selected all regions first. That does work horizontally, but if I have a region at the bottom of my track headers, that command does not seem to work vertically. The region at the bottom is still out of view.
One thing I tried was going to the key commands dialogue box and assigning option-2 to "save as zoom 1" and option-3 as "recall zoom 1." But when I start with everything visible in the arrange window, then hit option-2 to save that zoom level, then use the magnifying glass a bunch of times to make everything big, then hit option-3, it does not take me back to the original zoom level that I "saved" as option-2.
If the only way to get back to square one is to start there, then control-option-marquee-select to magnify a few times, then control-option-click on the background the same number of times to get back to where you started, well, OK, I will live with that.
But I am thinking there must be an easy way to "fit everything in window" with just one click, or maybe some kind of key-modified click.
Any advice much appreciated,
Jim

Answer 1

OK, thanks for the advice, Erik. I was hoping not to have to use the zoom sliders or the stretch scrollbars method, since it's not as fast as a one-click or double-click method.
One other possibility I was investigating today was saving a screenshot and then recalling it. The manual says:
Saving and Recalling Screensets
Screensets are numbered from 1 to 99 (using only the 1 to 9 computer keys—the 0 key
is assigned to the Stop command by default).
You don’t need to save screensets with an explicit command. It happens automatically,
as soon as you switch to another screenset. Thus, without any effort, your current
working view is always stored as the current screenset.
To create a screenset:
1 Press a numerical key, say 7.
For two-digit screensets, hold down Control while entering the first digit.
2 Arrange your windows as desired, including changes to zoom settings, relationship of
the Arrange area and editor areas, open or closed Inspector and Media or Lists areas,
and so on.
To recall, or switch between screensets, do one of the following:
m Input the number of the desired screenset (1 to 9).
I thought that had real possibilities. Make the arrange window the size of my whole project to begin with, then save it as, say, screenset 3. Then if I zoom in on a wave form or change the size of everything, just recall screenset 3 to get back. Unfortunately, it apparently constantly keeps track of all your changes, so if you zoom within screenset 3 and then try to recall the screenset 3 that you saved, it just takes you to where you are currently, after all the zooming. I don't understand why Logic thinks that helps you, but that's how it seems to work.
Anyway, I've spent enough time on it. I give up. I guess I will use control-left-arrow, control-right-arrow. Unfortunately, you cannot do them both at the same time, it seems, which would be faster. Oh, well.