As an administrator I would like the means to move multiple accounts from one mount point to another in as few mouse clicks as possible
The WHM interface should have a screen allowing for "Rearrange Accounts" to be done for multiple accounts simultaneously. This interface can be similar to the Modify/Upgrade Multiple accounts screen.
Since this functionality is designed for moving accounts from one mountpoint to another, the ability to filter accounts in a list by disk space would be useful. This would allow you to move accounts consuming more than a specific threshold of disk space onto a lesser expensive or larger-capacity hard disk.
The ability to automate this via SSH would also be appreciated, but is not mandatory to the implementation of this functionality.