I have rented godaddy deluxe package that includes unlimited domain names. I added some domain names with directory path as a forward slash ( / ) What I did was use the Add on Domain option instead of point to URL option. The point too option lets you mask the URL and add metatags key words and descriptions. Question is: Will the add on option be more effective then the point too option or get my site Xed from Google search eng? I wonder what is best to have for multi domains going one site.
If you set it up properly it will work just like an addon domain does everywhere else. If you type in maindomain that is where you should go. If you type in addondomain that is where you should go. The url in the browser bar should show whatever name you entered. As with cPanel you should let the system create the directory for you. Did that answer your question?