| | Re: Q10, BES10 & Single Workspace
Not sure if it's the same in BES 10, but I believe the policy option you're looking for in 10.1 would be:
Unified View for Work and Personal Accounts and Messages
Specify whether the BlackBerry Hub displays work and personal accounts and messages together in a single view. If you set this rule to Disallow, the device must display work accounts and messages in a separate view from personal accounts and messages in the BlackBerry Hub.
This rule applies only to BlackBerry devices with a version later than 10.1.0
It's under the Software tab, listed in the group Rules for all devices.
BB devices I've owned: 957 : 7750 : 7250 : 8703e : 8830 : 9530 : 9630 : 9650 : 9930 : 64GB PB
BES 5.0.4 ~ BES 10.1