Hi Matthew,

Based on my research on this issue, we don't have any feedback indicating
that users need more than 8 levels of outlining, as the feature has existed
for more than 10 years. It will be greatly appreciated you tell me your
detailed scenario and the requirement for this.

Look forward to your update! Enjoy a nice weekend!

Wei-Dong Xu
Microsoft Product Support Services
Get Secure! - www.microsoft.com/security
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