[looking for plugin]component at the quad center

[rv1974]

Hi!
I'm looking ruby that would place a given component at the faces center. 2 conditions:

1. aligned to the face normal.
2. keep horizontal position.
   Is there any?
   Thanks in advance for hints.

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[TIG]

Does this do at least some of that? http://forums.sketchucation.com/viewtopic.php?p=138042#p138042

[unclex]

it could scale Comp to the Face？