Didn't know of HathiTrust - interesting, thanks. When you do ask do you manually type/copy paste (i assume so)
But it's more common for me to just ask general questions. For example, when confused about a term, I asked "In Thoughts on the Funding System and Its Effects from 1824, what did Piercy Ravenstone mean by a sinking funding system?"
Sometimes, it needs a lot more context to output anything that makes sense.