New and User-definable Filters
Filters are great for controlling what is displayed in a specific viewer, but I think we need more of them. I'd like to see the current filter list expanded
upon and also the ability to create custom filters.
As far as how to implement custom filters, I'm imagining a dialog box similar to smart playlists in iTunes. It would allow the user to select almost any of a task's fields then add comparison operators like =, >, <, 'between' for setting up ranges, 'contains' for use as a search filter and so on. Search filters especially would be extremely powerful as a 'Live Search View'.
This is basically a duplicate request. Please vote for this:
http://taskcoach.uservoice.com/forums/26465-desktop-version-windows-linux-mac-of-task-coach/suggestions/371680-save-presets-of-defined-filters-and-sorting