I'm so used to using middle-click to paste, especially in the terminal, that it's really bothering me that doing so is moving through my terminal tabs. For sure my mouse has a wheel with side scroll. Is there any way to disable it or at least tell Konsole that I don't want to jump around my tabs when I'm just trying to paste? It's very hard to middle click without hitting this feature. I did search the forum -- how hasn't everybody been driven nuts by this?!

Many thanks in advance with fingers crossed.
Ben

Check the mouse settings in the System Settings -> Hardware -> Input Devices

FWIW: Please always state your exact Plasma version and distribution, it helps enormously with answering questions.