In order to increase or decrease your resource count you must subscribe to and provision a new VM with the licence for the number of resources you need. You can then delete the old VM.
Hyperglance is provisioned with 2 Disk volumes, an OS volume and a Data volume. If you have SAML configuration, rules or many account definitions it may be easier to move the data volume over to the new Hyperglance instance than to re-enter.
To move the data volume follow these instructions:
1) Stop Hyperglance instance
2) Detach data disk
3) Deploy new tier VM
4) Stop instance
5) Detach data disk, then save
6) Attach old data volume to LUN 1, then save
7) Start new VM
8) Login to Hyperglance via Browser