Make items I am watching available as a filter

I would like to be able to perform a search filtered on the issues I am watching. At work we use jira and have a portlet that displays customized columns for a filter. I'd like to be able to create a portlet that displays, for example, items I am watching for a project in an open state.

The watchlist portlet we have available does not allow sorting on any of the columns in the portlet, whereas the filter portlets allow sorting and many other useful features.

The watchlist is nigh useless for browsing.