[FeatureRequest] Add option to minimise ongoing download and ability to copy text like title/author name/description etc

Hello,
As per title, it will be great if user can minimise ongoing download and browse rest of the app as usual. Sometime it takes too much time to download a file so it can help user to browse other books/distract himself/herself from waiting...

Secondly, it would be nice to have ability to copy text on app itself by long pressing title, author name, description.

Thanks