Feature Request: Add support for Fractional Gridfinity - adding half units to baseplates and bins

[tBal-WithaTouchofMalice]

I am not sure if the link below is to the original creator of the concept of Franctional Gridfinity or not, but it explains the concept well.

https://makerworld.com/en/models/87228#profileId-93483

[Stu142]

If you want just a single row of half grids you can get this currently by adjusting the xGridSize property to be 21 mm or vise versa with y and then set the x and y Grid units as you like.

If you are looking for a whole grid with a half on just the side this is a feature that is already near the top of my list of things I want to add but will take some time as it is a bit complicated.

[Lithimlin]

The problem with just scaling the grid on a base plate starts when you want magnet/screw type base plates, since you would only need magnets/screws in some of the corners.