Another omission in AutoCAD for Mac is the ability to create and edit CTB files (plot style tables). AutoCAD for Mac still uses plot styles when you plot, but there is no Plot Style Manager with which to change them. One workaround, described on the MacACAD site, is to use the free DraftSight program from Dassault/SolidWorks, which does support CTB files.
AutoCAD stores its CTB files in a folder called Plot Styles. Use the Finder to search for this folder. Or start the Print command in AutoCAD (File menu). Select the Advanced button. In the Print-Advanced dialog box that appears, open the drop-down list for Plot Style Table Name and select Reveal in Finder.
If you want to edit an existing AutoCAD for Mac file, copy it to DraftSight’s Print Styles folder:
Alternatively, you could start with one of DraftSight’s CTB files, make your changes, then Save As to AutoCAD’s Plot Styles folder
Download DraftSight from http://www.3ds.com/products/draftsight/draftsight-overview/ and install it on your Mac. Select Print from the File menu. In the Print dialog box, select Print Style in the drop-down list beneath the Orientation section.
Caption: Select Print Style from the pull-down menu below the horizontal rule in DraftSight’s Print dialog box.
Next, select the CTB table you want to edit from the pull-down list under Print Style Table.
Caption: Select the style you want to edit from the Print Style Table list. It will display any CTB style you’ve stored in the DraftSight PrintStyles folder.
Then select Edit in the Print Style Table section. Click on New to create a new CTB file. When you’re done editing the plot style files, save them back to the AutoCAD Plot Styles folder.