Swapping layers in Allegro PCB

Layer manager shows artwork names and does not have anything to do with net names.

So...to move layers on a routed board you need to work it like a bubble sort with a "temp" layer.  Add an extra layer in the stackup and move LayerX to temp, then LayerY to LayerX, temp to LayerY.  (Edit->Change)

When done, remove the temp layer.

I guess you did not get the point, to move the layers in the design so that they show up for simulation, traces and shapes need to be on the layer as shown the cross section.  It appears that Allegro is unable to modify this stack up, just changing the layer name does not physically move the traces on that layer.  But when I do something like z-copy to move them, all of the net names get lost and I have to redo the routing.

 Even much simpler CAD tools have this feature.

 Actually I did get the point -- you did not understand how to do it.  It's quite simple in fact.  No where in my reply do I mention Zcopy as you seem to think is necessary.

Hi

Redwire is correct, here's the more exhaustive description, do a backup before testing this.

Suppose you want to swap layer2 and layer3
1. Create a dummy-layer for transferring data to. (Setup->Cross Section)
2. Disable visibility for everything except etch and text on layer2
3. Select Edit -> Change, select new subclass(dummy-layer), change Find Filter to Clines/Text then select all elements by window. This will cause all Clines/Text to change to new subclass(dummy-layer).
4. Repeat step 2 and 3 but this time turn on only visibility for etch and text on layer3 and change the data to layer2
use one of the existing layers and change the data to the layer you just removed the data from.
5. Repeat this again but this time use the new subclass(dummy-layer) and change the data on it to layer3 that was freed of data in step 3.
6. Delete new subclass(dummy-layer).
Your now back to you original layer count and all the data has switched layers.

Best regards

Ole