option to download all mail in all folders

Is there a way to get eM Client to download all e-mail, in all folders? like for offline use and have it sync everything when/if there is network?

Of course.  Go to menu/tools/accounts and select the IMAP tab (assuming IMAP is used).  In the Offline section check “Download messages for offline use” and (if desired) “Include attachments and images”

Great. Not sure how I missed that setting. I think cause I was looking in settings and not accounts. Thank you!