Hmm… I’ll have to think about it–in short, whether I want to take the simpler route of keeping things as they are and using “instanceTo” (since my cell-roots currently have positions, and thus “addChild” results in multi-parented objects being rendered at different positions for different cells), or the more complex route of reworking things such that cells have zeroed positions (allowing “addChild” to work). The latter might be more efficient, but the former would be easier, I daresay.
Anyway, thank you for your advice! 