You can list the dimension styles in the current drawing. You can also list all dimensioning
system variables and their current status or only the variables affected by a dimension
style.

When you list the current status of all dimensioning system variables, any running
overrides that apply to the current dimension style are listed. You can also list
the differences between a named dimension style and the current dimension style.

Use Externally Referenced Dimension Styles

The program displays externally referenced dimension style names using the same syntax
as for other externally dependent named objects. When you view externally referenced
dimension styles using the Dimension Style Manager, the name of the xref displays
in the Styles list as Xref:â€‌drawing nameâ€‌ with each xref style appearing below the drawing name.

For example, if the drawing file baseplat.dwg has a dimension style called FRACTIONAL-1, and you attach baseplat.dwg as an xref to a new drawing, then the xref dimension style is displayed in the Styles
list of the Dimension Style Manager as Xref:â€‌baseplat.dwgâ€‌, and FRACTIONAL-1 appears under the drawing name.

Externally referenced dimension styles can be examined, but they cannot be modified
or made current. You can use an externally referenced dimension style as a template
for creating a new dimension style in your current drawing.