Export Revit to CAD by subcategories Layer

[mehrdadjavaheri]

I have wall with 3 layers (Pic01). I want to export the revit file to dwg with it's layers How can I do that

[barthbradley]

You can't.  

[hmunsell]

I don't have a model open currently to test.... but what if you pick the wall and select Create Parts?  Might be a stretch but figure couldn't hurt to try 😊.

[ToanDN · Accepted solution]

Sure.

[bh-khanh]

Hello @ToanDN
You saved my life again.
We've been strugglig with it for a week and could not figure out why it could not be exported to the target layer as specified. It's always defaulted to the I-WALL or A-WALL instead. With just very simple step like that, it's unbelievable!

[bh-khanh]

Hello
Today we've resolved this issue thanks to finding this article. I woule like to leave a note to anyone elso who has same problem that before exporting to DWG drawing, pay attention to the "detail level". You can only "overwrite layer" when you select the correct "detail level", because if "coarse" is choosed, you won't be able to achieve your goal no matter what adjustments you make. 
at the Coarse level: the interior --> I-WALL layer in DWG; the exterior --> A-WALL 

THank you!