You can resume with one button but in my case... a script updated in thoose day are bugged, I need resume previous version until is not fixed so I made a backup of the last version installed BUgged for resume when the BUG has resolved so update from there.
Webuzo is also setup to do a weekly backup and have a maximum of 4 backups.
So in just some week my manual backup can be removed... so I downloaded IT.
I see in the backup section you can't upload a backup and resume.
Will be great if you add upload backup so by uploading a backup same as is downloaded the backup once uploaded in Webuzo can be resumed with one click.