Version: (using KDE KDE 3.5.6) Installed from: Debian stable Packages The workaround to view only specifics categories is kind of a nasty thing, I have to manually create filters for what can be already in Korganizer as a Toolbar. Meaning "View Category" Toolbar to make it quick and easy to switch among to dos relating to specific categories. View filters should be used for all other options and tweaks. There needs to be a simple way to sort out by Category.
This also creates a big problem when viewing the Calendar. Say I am looking at my Calendar and on the elft I have my list of To Dos, I want to drag and drop my To Do to the calendar to Organize my Day. Problem is, if I View by Filter, say Work To DO items, this means that everything is gone from my Calendar's view but work. Say I drag and drop an item to my 3PM Monday, but I did not know that there was already a Personal to do item there as Filter View does not allow me to do this. Point is, we just need to be able to collapse like a tree all To Do items relating to a specific Category. Or something just to view specific Category To Dos but without filtering out the other To Do items from the Calendar. View Filter only creates a problem.
Ok, Here is the workaround I have found with the help of few people: 1) Go to Manage Categories and do necessary changed to your needs. 2) Create a new To Do item and call is say @Work "@" is optional. I just use it to specify @=context Work taken from the GTD system. Next label it with Work category. 3) No right click on the @Work and select Create a new Sub To Do and enter whatever you want that relates to the @Work context. It will be automatically tagged with the Work category. This way you can have nice collapsible lists and sublists and categories and all without the need to use View Filters.
Fixed the right way in the version to ship with KDE 4.1. There is a quick search bar along with a category selector that should help quite a bit.