MeasureIt_ARCH is an addon for Blender, that adds tools to create design documentation and technical drawings that can be previewed within Blender's 3D viewport, and exported as images, vector graphics or .dxf files. Read the Doc's here:
If you duplicate a style, a new style is created, but this new style only has the name "_copy" without any further reference to the duplicated original style. In addition, and most importantly, the style settings have not been transferred to the new style. For example, the settings for the line width or the settings for the hidden lines are set to default values.
Sorry for the slow reply, Are you still experiencing this issue? What version of blender and what version of the addon are you using? I haven't been able to reproduce this on my end.
If you duplicate a style, a new style is created, but this new style only has the name "_copy" without any further reference to the duplicated original style. In addition, and most importantly, the style settings have not been transferred to the new style. For example, the settings for the line width or the settings for the hidden lines are set to default values.
-- Cheers, Nils