I feel stupid. How does one delete a backup storage account as listed in the backup storage tab?
Also, at one stage I performed a hybrid local to local to cloud. I have since deleted that backup but the restoration list appears under the "Local Backup" tree on the same tab. How can I clear that "history"?
Regarding your Glacier and Google Drive accounts: To remove them from the software simply go to "edit accounts" menu, select them, and click "delete", like on the attached screenshots
Regarding clearing deleted files: go to tools > options > repository, select corresponding account and click "synchronize repository. Any actions outside of the software are not automatically registered in GUI, so you need to perform this operation in cases like that.