We have several authoring doctypes, all based on roughly the same schema. Up until now, we've provided custom tag help in one of the doctype's "help" directory. This all works great. However, now I'd like to have our other authoring doctypes use the same help files (probably move the "help" directory to a common location). So far in the Arbortext Editor help, all I can find is documentation for APTHELPPATH, which claims it's only for UNIX. I tested it on Windows and it seems to work fine (hopefully it's just a documentation glitch). However, I'd rather avoid a solution that requires the user creating yet another environment variable. I don't see any set command I can put in the instance.acl to define this path (as for "set tagtemplatepath"). Does anyone know of a way to set the help path in the ACL startup file? Or, is there some way to override/create the environment variable via ACL?