Script/automation to add windows [closed]

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I need to add a lot of windows to model a building, and I tryed to add them manually in Sketchup. For the southern facade there was no problem, I could freely draw, copy and then project lots of windows at a time. For the rear facade I encountered several problems. First, when I drew and copy my windows the "project loose geometry" simply failed, deleting the windows or just projecting one of the 4 surface line. I decided then to draw them manually 1 by 1 and to project them in small groups. Apparently this worked most of the times, but still I could not draw any windows on certain surfaces.

Frustrated by many unsuccessful tries, I decided to resort to the WWR script built in in Sketchup. This allowed me to overcome the problem, but in this way I totally neglected the presence of a portion of wall between the windows, as well I reduced the total amount of windows metallic framework and thus the infiltration. So my question is, does a script exist to automatically add windows (just as the classic WWR script) in "rows" but keeping them divided into singular elements and not merging them into a single big "glass stripe"?

edit: I have forgot to mention that I followed the best practices illustrated here.