You can freely setup tag name up to 50 characters and up to 16 tags. You can make a new tag, alter tag name, delete tag and rearrange tags using tag setup screen.
It might be difficult to classify a note into a single category. Multiple tagging can be done to a note in ptsNotes. Therefore, flexible management can be done. It is proximate to the key word retrieval than the category classification.
Tag is used by narrowing the notes list with the filter. All notes with a tag appear to the list of the main screen when the tag is specified with the filter. When multiple tags are specified with the filter, it is narrowed to notes which have all those tags.
For instance, if you put tag 'Business' to note-A, tags 'Business' and 'Password' to note-B and tags 'Personal' and 'Password' to note-C.
When you specify tag 'Business' to the filter, note-A and note-B are appeared on the list.
And when you specify tag 'Password' to the filter, note-B and note-C are appeared.
If you use two tags 'Business' and 'Password', only note-B is appeared on the list.