KMail is awesome in many ways, but I was quite surprised to see this:

I create a complex search for messages. I save it as a search folder.
Then I want refine/modify a bit the search criteria later.
However I cannot edit it, if I click properties only some basic view settings appear, among which the file containing the search config file.

The config file is readable and editable by hand, but this looks quite inconvenient!

Is there away to edit the original saved search criteria and tweak them, rather than having to recreate them all over again?

Cheers!

You may wish to file a feature request at bugs.kde.org regarding this.