With respect, I cringe when I read the title of your thread. What do you mean by good? and what context are you proposing to use such a plugin for?
You lose a lot of time because you lack an understanding of who the drawings, you are producing, are for. Are you producing Working Drawings? or are you producing Preliminary Design Drawings?
Mixing Windows with Glass curtain walls is like trying to mix oil and water. No typical residential window, is not going to preform as a Glass curtain wall installed in a 50 story Highrise.
You also capitalize glass THICKNESS. I have never tried to show the thickness of a sheet of glass, particularly difficult in the old days, using a 4H mechanical pencil π Drawings consist of 2 parts Specification and working drawings. Specification normally describe the quality of the materials used. The working drawings are concerned with how the Window is going to be attached to the structural frame of the building.
If your are producing Preliminary design drawings "less is more " less detail is actually more desirable, it will reduce the file size in SketchUP. Imagine how much you can reduce the file size of a 50 story highrise using a simple sheet to glass in the exterior openings versus showing a detailed curtain wall profile.
Also showing Glass THICKNESS, is not a good thing if you intend to render Glass using Vray.