There is no OR operator available when editing alarm filters in the new Dashboard portlet

Document ID : KB000033937
Last Modified Date : 09/01/2019
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Is it possible to create an alarm filter such as below? 
"Origin is [hub] + probe is cmd + or probe is process + and message contains threshold or message contains stopped"

Currently this can be achieved using regex notation ...

You have to choose "matches" instead of "contains" and you can use the "OR" regex operator |
For example:
Origin is hub
probe matches cmd|process
message matches threshold|stopped
this would match messages which contain the word "threshold" or "stopped" -- it does not require a full/exact match.
'OR' operator will most likely be added in a future release to make it easier/more intuitive.