2 weeks ago
Your going to need to provide more information about your network before anybody can help you.
UCRM alone can't do anything.
Bandwidth shaping either happens at your NOC router (better be a good one), or at your CPE gear.
Suspension requires either a Edgerouter or a Mikrotik device as your gateway.
There is plenty of help material on this forum and in UCRM itself to get this going. But if it doesn't work come back here and ask, there is much advice available.
a week ago
Meanwhile, in the current UCRM, you need to follow these guides: https://help.ubnt.com/hc/en-us/articles/220161007-UCRM-Setting-up-Network-Devices-Suspension-Feature
If you are using 3rd party HW as your gateway router, you could use one of the existing UCRM Plugins: https://help.ubnt.com/hc/en-us/articles/360002433113-UCRM-Plugins