Who used the 4th axis on the 6040 yet?

Where best to mount it?

Any good way to remove the table and mount the A-axis at or below Z=0 to get maximum Z-travel?

Any cheap software that does not only do 3 axis milling in X+Z+A makes use of of the Y axis to e.g. follow the surface normal?

Any way to transform an STL object, so that a 3 axis CAM software can work with it, thinking A would be Y ?