I have four layer PCB stack up but wish to use the bottom layer as a 'plane' layer instead of a signal layer. Is it possible to configure Altium like this through layer stackup manager?
- L1 Top - Signal
- L2 Mid - Plane
- L3 Mid - Signal
- L4 Bottom - Plane
I can use multiple polygons but for my design a negative
plane definition with splits would be easier to work with.