The operational search feature can be found by navigating "Operational Views" -> "Search" from the top navigational bar. Searching can be done across commands an operator typed, the output of commands, or comments on tasking.
The search bar checks for what you type as a regex expression
The above screenshot shows a search of command output for the word "its-a-feature", but the search bar accepts regex as well. You can search the following ways:
Searches output from all tasking in your current operation
Searches just tasking parameters for specific regex. This can be further limited to just commands executed by certain operators.
Search just the command names. This can be further limited to just commands executed by certain operators. This is useful if you want to see all instances of a specific command being executed across the operation.
Search just the comments associated with tasks across the current operation.
Search the file browser objects that are stored for the current operation
Search through the event log messages (even those that have been deleted)