I created a notebook to be shared with a large group of people. Unfortunately, after setting up my tagging system just perfectly, I found out that tags can't be nested on shared notebooks. Because of the project setup, it requires the use of tags and it requires a lot of them. Without nested tags, it's all but unusable. Why is this? Is there anything I can do to make this work? Or at least some sort of alternative to Evernote that will work for this?