In Kplan, a Category tree is simply a tree-based classification.
It is like a collection of folders and sub-folders (= Categories)
where you classify your files (= Notes).
One great idea in Kplan
is that you can classify the same Note in
as many Categories as you want !!
To classify a Note in a given Category, open the Note (by double-clicking on it).
The corresponding windows pops up, and you just have to add the Category desired
to the list of Categories already selected.
You can also manage your Categories from
the "Notes and Activites" tab.
And of course, you can apply the same rules for your Contacts and your Documents.