I can't tell exactly what you're asking so let me try two guesses:
1) Do you want users to be able to drill down on the table row for a given value of the B1 field in index=remedy, and to search for that value as the value of the C1 field in index=nmap? This is fairly common and fairly easy and falls into the scope of table drilldown.
or
2) Do want to run one report with one set of result that basically stitches information from teh C1 field values in index=nmap, in and among the appropriate values of the index=remedy | chart count over B1 by Status results? ie do you want to augment or add to the main search results using relevant information pulled out and matched up from the index=nmap events? This would be a general question about grouping and your best tool would most likely be the stats command. Very roughly, and only as a rough example: index=remedy OR index=nmap | normalizedBCField=coalesce(B1,C1) | stats values(Status) as Status values(someFieldFromNMap) as someFieldFromNMap by normalizedBCField
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