Is There A Way To Pre-Define A Framing Layer?

[HumbleChief]

Roof framing - rafters end up on 'framing, roof rafters' layer.

 

In this pretty unique situation I want most of the many, many, rafters to be grayed out to show existing framing below, with the new rafters darker to show new framing above AND I want the new rafters on a different layer.

 

Almost done manually making the changes by manually selecting the roof rafters and changing layers. but any auto framing gets me right back to black on black rafters every where.

 

Was wondering if one could send all roof rafters to a pre-selected layer? Or certain roof plane framing to another pre-selected layer?

[Bill_Emery]

I don't think you can pre define the layers, but you can develop roof planes in separate plans, to make it easier to sort things out.