To suppress caching based on client IP address, you can construct the policy like below using the Local Policy from CLI:
 

<access>
client.address=1.2.3.4 exclude(yes) - This policy would suppress caching for the client 1.2.3.4 to all destination
client.address=2.3.4.5 url.domain=testtest.com exclude(yes) - This policy would suppress caching for the client 2.3.4.5 to testtest.com only
url.domain=abc.com exclude(yes) - This policy would supress caching for all user accessing abc.com. This would be the same as the one you construct from GUI