The Mixed Reality Forums here are no longer being used or maintained.
There are a few other places we would like to direct you to for support, both from Microsoft and from the community.
The first way we want to connect with you is our mixed reality developer program, which you can sign up for at https://aka.ms/IWantMR.
For technical questions, please use Stack Overflow, and tag your questions using either hololens or windows-mixed-reality.
If you want to join in discussions, please do so in the HoloDevelopers Slack, which you can join by going to https://aka.ms/holodevelopers, or in our Microsoft Tech Communities forums at https://techcommunity.microsoft.com/t5/mixed-reality/ct-p/MicrosoftMixedReality.
And always feel free to hit us up on Twitter @MxdRealityDev.
Office 365 Business Premium and ProPlus
O365 Business Premium and Office 365 ProPlus are two different office plans provided by Microsoft.
The first one is aimed at enterprises that need office productivity as well as connectivity solutions for and between their employees. It is handy for scheduling meetings and plans.
The other one, that is, Office 365 ProPlus is aimed at working individuals that need the office plan.
Both are great plans in their own way and they are scalable as well.