Hi Mike Kneer, the below links are great references for training.
https://community.jivesoftware.com/community/training/jive-user-training/pages/scheduled-training is where you can find the training course schedule - anything that is listed is still available, you can also check out the Jive Software Documentation - Documentation - Jive Software
Another resource for community managers is Jive Adoption Resource Center and the weekly Ask a Consultant call on Thursdays at 12 EST. You can find the invites in the Adoption Resource Center.
Hope this information helps!
I think what you have discovered is that when you set the Dashboard to be hidden, the next time that you open your Office program, the setting is not maintained.
I am not aware of a way that you can default that for yourself. I think you have to make that selection every time.