I have written a small GUI to make it easier to change the meta tracker configuration and apply said configuration. For those of you not familiar with the tracker it's the background process that indexes all content to make it show up in e.g. Image viewer and Media Player. (But if you really don't know what it is maybe you shouldn't play around with the settings anyway...)

It's in extras-devel (so regular warning, warning, it's not tested at all). If you still like to test it, please post your impressions here, it's called tracker-cfg btw,