At this time, you are able to archive one document at a time from the web app. The iOS apps and Android app do, however, allow you to archive multiple documents at the same time. Simply long-press on a single document from your main Documents folder and when...
No, you cannot. Once a document is archived it’s considered complete. So you won’t be able to add fields, invite signers, make it into a template or create a signing link from an archived document. Simply move back into the Documents area to do those things.
Yes. Just like anything in your Documents area, you can email, download and delete the documents in your Archive.
You sure can. You can move the document into a different folder within your Archive or un-archive it altogether and bring it back into your Documents area.
Not at all. There’s no storage limit and you can create all the folders you want.