There is a new version of ORA to be released soon that supports #1, that is, when you Extract Meta Networks the documents (tweets, in your example) are now exported as well.
For #2, the BEND report is designed to analyze Topic Oriented Communities (TOC), formerly known as Topic Groups. The TOCs for the selected agents can certainly be exported.
If you would like to extract the meta-network associated with the tweets of a particular agent, then I would use the Sphere of Influence tool (or the Ego Networks report) to extract that meta-network. If this is twitter data, then you should also use Data Management \ Meta-Network Derived Data to recompute "derived" networks from the "base" networks extracted.