This is what I have so far (Sorry about the different sizes for the pictures):
I’m still not clear on how some things work with this approach. For example, it seems that most things I put on the Alpha layer (now a media layer on the right and an edit layer on the left (plus one of the right columns) also appear under the main Shift layer. But I think there were some things that didn’t turn out the same and I did some things manually. Maybe I lost track of some things I did as this layout developed from three previous layouts so far.
From my limited testing so far, it seems the edit and media stuff works and I only have to use one finger - which was my goal. So I can have the TB laying on my desk and if I need to change volume, etc, I can just reach out and easily change it, just as I could with the special function row on the Apple keyboard.
The edit part I put on the left is just something I figured I’d do since, well, I’m presently not doing anything else with those keys!
It also seems that I can be in this primary layout and then press the normal key pair for Edit and it works that way (with the edit positions on the right side as is “normal”. Vow, if you go down to the layer actually labeled “edit”, I haven’t changed anything. I assume that is necessary for the normal edit chord to work.
Lixewise, the original Media layer is left alone. I assume, but have not tested, this could be used for something else. After all, it will typically be easier to use my new media setup.
Now, the big deal, once I decided to make the media and Edit lock stuff to be on the primary layer, was to put the normal alpha characters someplace so I don’t have to use a jump slot (that wouldn’t be bad, but this is quicker and saves a jump slot - I just alternate activating or deactivating the old Number lock layer).
So, Num lock is totally act like what the original main layer and green layer did. Right now I’m with this layout and to get the letters, I just activate Num lock.
As I said, Shift still confuses me - why did a lot of the stuff I put in the main layers appear here seemingly automatically, but with a few exceptions? And the green layer of Shifc doesn’t give what this shows. I won’t get into details now. I need to sort it out myself!
The Function level only has stuff on the first of those and some of that may no longer be necessary. For example, I have volume up and down. Well, I have that on the main layers at the top! Besides, it seems that if I have Num lock on, the function chord doesn’t work. So I’d have to already be in the normal layer.
The whole process is kinda fascinating to me - because as I do one thing, it leads to seeing other things to change.
And there are things that work in odd ways with Apple - at least with iTunes. For example, on the media commands, we have both << as well as | < , but they seem to do the same thing. After I have time to do more evaluating, i may remove such duplicates - thus leaving room for other options.