More control over exclusions in keeping accounts seperate

There's an option in Account Details: Display Options to "Keep this account separate - account will be excluded from Quicken reports and features". I want more control over what the account is excluded from. As an example, I have a college account for my child that I do not want included in net worth calculations etc. However, if I check that box and exclude it...I can't select that account in the Planning tab as College Savings as it's not available.