SlateViewer and where, how to get it

Hope this is the right place to post this.

I am trying to create a stand alone application inspired by an old application called “structure synth” using the Unreal Engine. I have had success using the editor and slate coded HUDs to create the user interface to test and create a kind of prototype of this application. But using HUDs is totally inadequate, and what is needed is a method of creating an application windowed UI separate from the UE editor and able to display slate widgets, access the UE functions, and render the results in a window with actions similar to how the editor displays and runs a game. I have attached a screen shot a what I have done and similar to what I want to achieve, but the windows displayed are generated from a HUD using an SWindow widget, and the results rendered in the UE editor.

What I want to achieve is something similar to this post and question.

https://forums.unrealengine.com/community/general-discussion/44353-form-applications

and the suggested solution is to have a look at an UE project called SlateViwer. But I cannot find SlateViewer project in the UE4.21 directories or online. From digging a little more it seems to only come with downloading the entire Unreal Engine source code on GItHub, and I do not want to subscribe to GitHub and download the UE source code when I have no intention or want of editing it.

So, is is possible to get this SlateViewer project from some other source so I can have a look at it and see what I can do with it?

Much appreciate for any assistance that can be given.

Regards.

IDominionI