Sound lock preview & adding notes?

I really like the ability to have different sounds from the sound pool within a track but i can’t find a less tedious way to preview the sound other than wait for it to play through the sequence. Am i missing a shortcut here? The same with adding the same sound, copy/paste each note change pitch?
Why not just allow us to lock the current sounds & double tap the track to select a new sound in the same way? This way you can preview sounds & record them much more easily.