Hi
I am trying to use and modify a PCB-layout that has been created with
the freeware version og eagle with the standard version.
I want to take advantage of using 4 layers for signal routing, but I can
only find two layers for routing when I open the board layout.
If I create a new board layout, all the signal layers (1,2,15,16) appears.
I have tried adding the layers through the layers tab in the DRC-menu,
with no luck. I have also tried adding them with the command «set
used_layers 1 2 15 16»
Håvard