Purge unused layers

[rlackore]

I'm interested. How can unused layers be purged?

Layer management is quite clumsy and time consuming.

Would like Chief to review and streamline to show only a layer set and add or remove from a layer set.

Any views on good management are very welcome.

As far as I've been able to determine, multiple unused layers can't be "purged" in a single operation - you can only delete layers one by one from the Layer Display Options dbx. CA has several layers that can't be deleted. If it helps, I've attached a pdf that I threw together as a "cheat sheet" for our office - it explains the default layers (X5) that can't be deleted (I can't guarantee it's perfectly accurate - CA can be very confusing).

CA X5 Layers.pdf

As an explanation of the pdf, there are some colors used:

Layers highlighted in yellow are not implemented by the current version (X5) of the software. They are available for use, though they cannot be deleted.
Layers highlighted in blue can be deleted, but will be regenerated when particular symbols or objects are created in the drawing.
Layers highlighted in red are default annotation layers.