Best setup for multiple machines

I have a live account for my email address as I have a surface and originally registered for an account to use for machine backups, browsing syncing etc. I also use onenote and wanted it syncing to a 365 onedrive account so I signed up for office 365 business basics so that I could sync onedrive and all of the associated attachments, audio records etc to it. I would love to use use the paid business account but I cant sign into the surface with the business account, only home accounts as I dont have pro. The next issue is that I use another laptop, android tablet and phone also signing into the business 365 account. These all used to sync fine but now, all other devices disconnect as the one you have signed into it connects. Not a major issue, you sign into the device you want to use, sync and then continue However i jump from device to device that often that it starts to grate on me that i cant just grab a device and sync. Is there any way I can register each device so that they are trusted and then more than one device can stay connected.