A way to apply effects to samples only

Hi. Is there a way to trigger effects to samples or better yet, a sample, only (meaning the samples loaded on the samples deck)?
Is it a matter of just having a skin interface allowing to also route the effect to a sample channel only or is this functionality currently missing? I have failed to find this option thus far.

I prefer Mixxx over all or most other options right now for mixing ambient and classical music with samples of lectures/spoken text, and I rarely use effects on the music part, but I do need to tweak the text and samples and drones almost every time, as their quality varies immensely. It is also tedious (and kind of misses the point, given the rich cueing options etc) to cut all of them in advance and apply the effects in advance as well, bit by bit.

The only ways I've found (in which case most other software becomes a better choice) is a) send the effect to the master (then it also mangles my main music stream, which I don't want) or b) send it to decks 3 and 4 and use these two for the samples and be limited to by their number. Due to the nature of this kind of music I also use a number of layers at any time (nature, small sounds, sea, text), so I kind of do make use of all 4 sample decks fully in addition to the main two decks (whilst not using beat-music features such as tempo tweaking etc almost at all).