Each module has its own sections list, which is represented as a tree. You
can add, edit, delete sections - tree nodes due to your needs.
For the "Notes" module the tree serves as a table of contents, each tree node
has one corresponding article in the notepad.
In other modules each tree node may have a number of corresponding records.
If you select a node, which have child nodes, then appropriate records list
will include all records, corresponding to these child nodes.
To add or delete a node you need to use appropriate button on a toolbar, menu
"View", or the keyboard.
If you delete a node from the "Tasks", "Address book" or the "Calendar", you
will be prompted to choose, what to do with appropriate records:
a) Delete them ;
b) "Clean section" - i.e. remove from those records the info about the section
they belongs, in this case they will be accessible via the first ( root ) section "All".