1. Application Menu (big "A" at upper left corner) > (Drawing) Utilities > Drawing Setup.
2. Set the Layering tab current, if it is not already current.
3. In the Default Layer Standard area, is the Layer Key Style set to Current Layer?
4. If so, can you use the drop down to select a different Layer Key Style? If so, choose one and see if that works for you. (See below.)
5. If not, does the Layer Standards/Key File to Auto-Import edit box (at the top) have a source file for Layer Standards/Layer Key Styles set?
6. If not, use the browse button and try to find the appropriate file. Your office may have a custom file set up for this; the out of the box file, when installed to the default directory, can be found here: C:\ProgramData\Autodesk\ACA 20xx\enu\Layers\AecLayerStd.dwg; substitute your version year for 20xx. Your location may vary, for example, if content was installed to a network directory. Older versions may have a slightly different default installation location. (Windows XP locations will also be different.) Note also that in Windows, the ProgramData folder is a hidden folder and you will have to tell Windows to show hidden folders (if you have not already done so) in order to see it in Windows Explorer or the file dialogs.
7. With a source file set, you should be able to select from the Layer Key Styles defined therein in the Layer Key Style drop down.
8. If none of the above works, post back and include any details on how ACA was installed on your computer.
Which Layer Key Style should I choose?
If you have a custom one for your office, use that one. If you are using one of the out-of-the-box Layer Key Styles, then the appropriate one will depend on what version of ACA you are running and which layer standard you are using. ACA 2015, as distributed in the United States, ships with the following:
AEC Title Case - NCS 256 Color
AEC UPPER Case - NCS 256 Color
AIA (256 Color)
BS1192 AUG Version 2 (256 Color)
BS1192 Cisfb (256 Color)
BS1192 Descriptive (256 Color)
DIN 276
Generic Architectural Desktop
STLB
You may have others, if you have localized content installed for an area outside of the United States. The first three on the list are based on the US National CAD Standard (first two on version 5.0, third on version 3). The next three are British standards. DIN 276 and STLB are German standards. In older versions, the Generic Architectural Desktop used to use the Layer Key as the layer name. In 2015, it is slightly more developed.
David Koch
AutoCAD Architecture and Revit User
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