This section of the settings task allows you to manage the tree of mailbox folders.
The hierarchical folder tree is displayed in the middle list widget where you can select a single folder by clicking it. Folder information and some settings then appear in the right properties pane.
There might be folders which are grayed out and which cannot be edited nor deleted or renamed. Such folders are “virtual” folders which are only there for structuring but which cannot contain any messages.
Some Special System Folders cannot be renamed or unsubscribed because they have special purposes and are used by system processes.
In the folders list, the right column indicates whether a folder is subscribed and by clicking the checkbox, the subscription for that folder can be changed.
Subscribed folders appear in the email view whereas unsubscribed ones are hidden and only visible here.
Hint: the Parent folder field is already pre-selected whith the folder currently selected in the folders list on the left.
Folders can be nested to build a hierarchical structure to store your emails. Even existing folder can be made a subfolder of another ore or move to top level.
To move a folder simply drag & drop it with the mouse from the list onto the desired parent folder.
Alliteratively the parent folder can be selected in the properties form in the right and by hitting Save the currently selected folder is moved to its new parent.