Alright, progress on the DCS GUI editor:

The only items not able to be added at this point are the buttons, the sprites, and the mouse cursor. After I've added those, the next step will be to clean up the output (it's doesn't actually output correctly right now), fix the rendering of the items (at the very least use the right font), and then add the ability to save/load GUIs as XML, that way if you make one you can easily open it back up and modify it.
You may notice that GUIRWinButtons isn't an available item. I've made that part of the containers themselves. If you look at the properties pane, you can see the WinButton* items.
Also, I seem to have forgotten to include this update:

You can now specify a website in the XML, and you can right click to launch your browser and go to that site. If no site is found, it'll go to the site listed in the level above it. If nothing can be found, it'll yell at you.

It starts to remember me of Visual Studio, actually, it's very easy to design programs :9

merthsoft, you sir are a GOD
Love how this is coming along can't wait to play around with it

I will go back to BASIC when this comes out for sure! (not go back, but give it a second try!)

Well, this is more aimed at Hybrid with DCS...so, not quite BASIC

Celtic III and xLib are BASIC for me and so is DCS, it's all based on BASIC, so it's Basic

Celtic III and xLib are BASIC for me and so is DCS, it's all based on BASIC, so it's Basic

Not based on BASIC, but an extension of BASIC

It works with Axe too, though, right? I think it's designed for Axe, BASIC and Hybrid.

It's more designed with (Hybrid)BASIC in mind, but you can do Axe. There's even an xml file for Axe, and the Hex sprites make it nice. I plan on learning Axe so that I can make it work even better for that. When I first came up with this idea (years ago...) there was no Axe. I actually first came up with this idea when Celtic III was still being written!

Also, I illegally use your XML files as tokens databse since the .inc file is confusing

You probably shouldn't (admit to) steal(ing) someone's intellectual property... I don't appreciate you using the file without permission for anything outside of TokenIDE.