IMPORTANT NOTICE: As of 21 February, anything posted in this community WILL NOT BE MIGRATED to our new community site. We have pulled all user information and data from this site and are now in an approximately week long process of importing users, roles, and data to our new site. We are leaving this site open and active so you can post and hopefully get a response until the migration is complete. Once complete, the URL that currently takes you to this site will take you to our new site so your bookmarks will work as always. Please read the information on a New Login Process
Use the standard "Add file" to add the file to the "Profiles" folder of the project. Just set the file type to "All files (*.*)", the last entry in the list. Once this has been done, you will be able to see the .opt files listed with all your other files. After adding the file in that way, you can right-click on it and get the Option Set menu ("Open Option set", "Close Option set", etc.).