I'm still not able to create a new sub category in the project browser. I went to Kyle B link and looked at those screen shots but I do not have "sub-discipline" as an option. Using R 2013. Thanks to any and all for your help with is so far.
If your Views do not have "Sub-Discipline" listed under Properties, then you probably need to add it to your Project. Go to Manage tab » Project Parameters, and click "Add..." in the following dialog. Enter the name, leave it as an Instance Parameter, change the "Type of Parameter:" to Text, change "Group Parameter Under:" to "Graphics", and select "Views" from the list of Categories on the right. Click 'OK'.
Now, at the top of your Project Browser, right-click on "Views" and select "Browser Organization...". You can either create a new Browser Organization for Sub-Discipline or modify and existing one to include Sub-Discipline under Grouping and Sorting. Refer to the link below for help.