File sharing needs some major work

The one major flaw to the Gmail app is the file sharing capabilities when responding/forwarding mail. The only options available are pictures, recent attachments and Google drive docs.

Why cant we have access to Dropbox & other cloud services like just about every other email app today?! This is the one main issue with Gmaik. Please fix

RDHath about Gmail - Email by Google, v5.0.180121