If you asked me, I would advise as strongly as possible that you stop using the term "legos" for a class of component.

1. We all know what the owners of the trademark will do when they find it (justifiably, perhaps)

2. The plural of Lego is Lego - legos makes me wince every time I read it

Just call them blocks?

As for what this does... kind of an interesting idea, but I feel like the overlapping set of "people who need to do this sort of operation" and "people who want to build these in a UI rather than write a script" is pretty small.