Hey, currently we don't have the feature to do this easily. You will have to make a backup under the backup tab in the control panel, three dots, and download the backup. On the billing panel, you can delete the server and create a new one with the upgrade. Then you can drag the upload into the file manager tab on the new page, three dots, and unarchive. Depending on how big it is, this may take a few minutes, so please wait at least 5-10 minutes before doing anything else. Let me know if you have any issues!
