The "snap" functionality is nice. Would you contemplate adding an "align to" capability. Something along the lines of;
1) select the first part. This is the "anchor" part.
2) CTRL-select "N" more parts. These are the parts which will move
3) Invoke "Align to". The options for align to are conceptually drawn from left side, right side, middle, top, bottom, centre and adjacent.
The parts selected in 2) then are aligned to the anchor according to which "align to" option is chosen. The purpose of the "adjacent" is to align one side of a part next to the other part e.g. the right face of one brick to be placed next to the left face of another brick.
I tried MecaBricks out for the first time yesterday. It is a stunning tool. Nice work.
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