This behavior helps you quickly find the records that have the selected field value that you choose with a single click. This is usefull to filter and display the records by category with a navigation bar where you have a link for each category in your recordset and the link will display the category label.
Recordset:
The recordset you want paging
Field:
The recordset column that stores the value label you want displayed in the navigation bar links.
Link style:
The css style for the links in the navigation bar
Current link style:
The css style for the current label link in the navigation bar
Active page mask:
The link mask where the {1} will be replaced with the link. Can be used to add special chars to enclose the current letter like [1]
Link separator:
The characters will be insert between the links to separate the links.