mvourlakos added a comment.
I don't know if this can be of any help but this is supported by Latte dock, including scroll wheel to increase/decrease the specific audio stream volume REPOSITORY R119 Plasma Desktop REVISION DETAIL https://phabricator.kde.org/D19822 To: faridb, #plasma, #vdg Cc: mvourlakos, ngraham, broulik, plasma-devel, jraleigh, GB_2, ragreen, Pitel, ZrenBot, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, mart