I'm want to switch my email reader from thunderbird to kmail, but I've run into a problem: kmail is missing the ability to show or hide read emails.
I've checked bugzilla, and it seems that people have been asking for that feature for a long time: 29903, 46744, 47611, 52154. The funny thing is that all these bugs are marked as fixed.
Reading these bug descriptions doesn't help with finding this feature that was supposedly added in kde 3.3. Does anyone how to access this feature?