if I have maxed out on my given Sharepoint based on 365 rules - 1 TB per client and 10 gig per license can I add space from a different package - e.g. Sharepoint Online Plan 1 (1 TB per user) or Plan 2 (unlimited). So for instance if I have 100 users I would have by default 2 TB. If I wanted to take that up to 5 T B could I just purchase 3 Plan 1's (each with 1 TB) or 1 Plan 2 with Unlimited. Or upgrade one Premium license to E3 and get with E3 Plan 2 - unlimited.