I purged the drawing and accidently purged out some railing styles that I need. How do I get them back?
Open the file that does not have the railing styles you need. Now open a new drawing file. Select from the tab ""Manage"" then ""Transfer Project Standards."" The ""Select Items to Copy"" dialogue box will appear with a long list of ""items"" to select to copy to the current file from the other file. I would keep them all checked and click ""OK."" If given a choice on which of the standards to transfer, select the ""New Only"" button.