You cannot send it as both inline and CSV, from the same search. Splunk does not currently support this, but they said it is possible that in the future it will be. If you want to create a duplicate search to do the same thing and send one as CSV and one as Inline, then that will work. The problem with that is two emails will be received instead of having them blended into one.
I hope i answered the question i am not really sure if that is what you are looking for.
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