May have been covered by others in prior requests, but a cursory search hasn’t surfaced them.
In any case, two of my most desired features are 1) the ability to select different AMS filaments for perimeters and for infill, and 2) the ability to generate graded infill from exterior to center.
The first should be relatively easy to implement, the latter would require more work, but could be fantastically useful (as most of the tensile and compressive work is being done, in reduce terms, by surface material, with the relative proportion decreasing with proximity to the center of the body).
Can’t be the only one wanting these features.