How to Filter
Sign in or go to the 'Organization and Projects' page.
Click on the document you want to filter.
Click on the 'Sort/Filter' button at the top of the list.
You will then see the Page Settings Dialog where filtering is managed.
Use the 'Filter' drop down to choose a preset filter appropriate to the list type OR click the 'Custom' button to invoke the custom filter dialog and create your own.
Click the round help buttons on the right hand side of the custom filter dialog for details on creating custom filters.