Sure thing, Peter! I won't go in all of the details, but here is a rough idea of my stuff, from top to bottom:
Shading group
* General Fuselage shade
* Small shades (antennaes, bulges, etc.)
Lighting group
*Same principle as for Shading group. These two groups are what gives the aircraft its shape.
Fixed group
* Glass sections
* "Fixed" parts: exhaust stacks, cockpit instruments and seat, nav lights, guns. Basically, what I put here is anything that does not vary (i.e. would not be painted) from one aircraft to another.
Weathering group
* Exhaust staining
* Gun staining
* Paint chips
* Paint wear...
Colours group
* Markings (serial, code, unit badge, etc...)
* Paint/camouflage
Base group
* Metal
* White background
As I said, this gives the general idea. In practice, I have dozens of layers in these groups. Ideally, you would use one layer for each and every element you draw. However, if you do so the filesize increases rapidly and gets out of hand, so try to keep the layer count to a minimum. That means that you can group elements in a single layer so long as you can modify part of the layer without modifying the rest.
Hope this helps.![]()