Time past as it often does on Earth and I forgot about this post after solving it, sorry for the late reply.  My intention was to experience both your Extended layout in addition to the wide mod.  I had many problems getting the correct command and it was not until I added -variant colemak that I got it working.  I was thinking if I switch my keyboard to a standard QWERTY layout and then apply the command, then I would not have to bother manually reprogramming my keyboard every time I wanted to try another mod.  When I put my keyboard into layer 1 which is factory QWERTY and used a variety of commands I cobbled together reading your Bag of Tricks, it seemed that the mapping I would end up with did not match with the layout I wanted (Colemak-DH wide)  Some keys were correct while others were not and it was impossible for me to type anything, so I would reboot and switch back to my Colemak-DH Standard ANSI layer so that I could type.

I did try the Extended (I found that it was a bit different than the pictures and I think that is because of the Wide mod plus the ANSI) but I could figure some things out, for example the function keys did not control, play, pause, volume... and I could not figure out how I would use other CTRL combinations other than cut, cop and paste.  I determined that this layout was not good for me, at least I could not see it being useful nore figure out where all the extended keys were located. 

I tried the wide layout and it was very cool however I thought to myself, when I get a Job how would I get this custom colemak.  I learned from your guides that there are expensive USB dongles / devices that can sit between a standard keyboard and the computer, and then I could use your BBoT however I already dropped nearly 300 CDN on this keyboard.  If a employer would permit me to use such a device, they would probably permit me to bring my own keyboard.  If they allowed instillation of the executable from colemak.com (perhaps they know its safe) would they also permit the install of your EPKL for Windows (as I am sure they would be using windows) I know its safe and the source code is right there on github but I am not sure if employers would trust it. 

I tried manually programming the wide dh version of Colemak into my keyboard but it was more complicated to program and so I ended up just going back to Colemak-DH without the wide mod via my programmed layer on the keyboard.  So at least for now I am using Colemak-DH and loving it.  Managed to get up to 58 wpm once on nitrotype but usually end up with a score much closer to 50 which is 10wpm faster than my max Qwerty speed ever was, and I am even getting an average of 97% accuracy.  So I am happy for now.  I very much appreciate all of the work you put into your Big Bag of Tricks and how knowledgeable you are with everything keyboards.

Thank you for your awesome level of support, I very much appreciate it.  This is good news on the job front as I was starting to wonder about how a workplace would handle the situation of me not being QWERTY compatible.  I probably did do many things wrong and definitely do not blame your work in any way, I probably need to read it again, your very thorough and there is a lot to read and process.  That is a good thing as I am technically inclined myself though xkb still confuses me.  Initially I did use your shell script and I remember being confused as to what layout to pick, I settled on pc104caw-zqu being most likely what I was after, but for some reason whatever arguments I gave to the script I ended up with a very strange mapping.  The media keys were just an example ot a few keys that did not seem to work for me.  I run ArcoLinux with Xmonad as my window manager and have multimedia keys mapped to amixer and using Fn Pg Up and Pg Down on my keyboard I can adjust volume so its not really a problem but something I thought could be handy by just pressing a function key instead of two keys.  I should have taken notes on which keys on Extended that I could not figure out as the information I have provided here is not really enough to diagnose where I went wrong.

I will give this another shot in the not too far off future, though currently I need to focus on my programming and a project I committed to.  At which point I could open a new thread with better documentation on what I tried, what did not work and the steps I took.  Once again Thank you for your support and for all of your hard work.

Today I gave this another shot.  Was not sure weather to start a new post or continue with this one, I chose the latter.  What I want is the Colemak-Curl(DH)-AngleWide I believe it is called on a ANSI PC 104 Keyboard.  I would not mind giving extended another go.  Reading through the BBoT I have gotten confused with the terms AltGr, variant and LTGT confuse me, is AltGr the right Alt key?  Is LTGT referring to the keys '<', '>' ? and would not mind some clerificaton on this. 

I used your install script `install-dreymar-xmod.sh` with the -ox option.  I followed this up with a

setxkb.sh -m pc104curl-z -o 'misc:cmk_curl_dh'

and took a screen shot after typing the keys from each row to show the mapping I got.  

I am confused as to what command options to use to achieve Colemak-Curl(DH)-AngleWide on a ANSI.  I am running ArcoLinux.  Any guidance would be appreciated.  I hope I have provided sufficient information when coupled with the image at https://i.ibb.co/fvGb1f0/keyboard.png

The name of the ISO specific key is <LSGT> for Less/Greater than, not LTGT. I think it's a better name than VK_OEM_ISO_102, after all.  ¯\_(ツ)_/¯

Your rerunning the setxkb.sh script seems superfluous and lacking at the same time? If you ran the install script with -xo, it already ran setxkb.sh for you and you should have the layout you want! On the other hand, if you want to make the layout settings permanent over restarts you should have a setxkbmap line somewhere, which setxkb.sh can do for you with the -a switch. Did you run setxkb.sh with a help switch (-h) first? Or look inside the script to see what you should do?

I'd prefer using a shortstring myself. Say, for Colemak-CAW (CurlAngleWide) on ANSI, it's '4cw' and for the US standard layout it's 'us us', so it becomes:

setxkb.sh -a "4cw us us"

At least I think that'd work for you. Did you also look at the setxkb.sh examples in the Big Bag XKB topic?

A layout variant can be one of several defined layouts in each layout locale file. Say, for the symbols/us (USA) file there's a bunch of variants inside it one of which is Dvorak and another of which is Colemak. With my stuff installed, there's also a cmk_ed_us variant that's my Colemak[eD]. There are such variants for a bunch of locales. For the US locale, there are also other variants like the Tarmak learning layouts, but you probably don't want to fiddle with those. The above line should get you the cmk_ed_us variant of the US locale, which is what I think you wanted. (Not the Norwegian layout, as SteveP pointed out you got by not specifying a locale/variant.)
  ( のvの) c[_]

[Edit:]

Ah, yes, I see now what you did. You tried out one example from the BBoT but didn't read the fine print. See, you got the setxkb.sh default layout by following the second example, as I promised, but you didn't want that I think as it's the Norwegian Colemak[eD] layout?!

I have just noticed that the = key that gets moved as part of the wide mod, on 4cw is placed between 6 and 7, while in the picture for

at colemakmods.github.io it is placed between 5 and 6. I can see from the image for

It is correct,  I can train myself to learn how to hit these keys but wounder about which Short String code would produce it as seen on colemakmods as I think I would prefer that.  I am thinking that I would have to go the route of

as documented as per section 2.2 would this be correct?

I see in Colemak mods [downloads]<br>

perhaps this is what I need to do if I choose to swap the = and 6 keys

Thank you stevep99 that explains it quite nicely and the link was also helpful.  Now I understand it I think I will train myself to keep it as is.  It seems it is a topic all in itself, while I was thinking it was a mistake, it seems a conscious choice based on country of origin, the physical hardware and personal preference.  Your Mattias Ergo Pro looks mighty fine and now this is going off topic and into realm of preference, how reliable is that connection between the two half's of the Mattias, , are you happy with your keyboard choice?  If you could time travel would you purchase the same keyboard or a different one?  Sorry for going off topic, I wonder about these types of keyboards, was actually considering a ErgoDox but it was out of my price point, though after buying the latest WASD offering and the accumulated costs after shipping and duty fees, I probably could have just got one of those.  There is probably many discussions here and elsewhere that I should search for to get my answers.

Thank you very much that is very helpful feedback.  Will have to join in the Discord at some point.  Thank you both for all of the help your have provided me and answered questions.  I think that I am in good shape now and should start learning the Extended soon.