I changed the camera speed from the default 4 to 1 but it still doesn’t affect the zoom speed (using scrollwheel). I would like to zoom in smaller increments, especially in the node-based material and blueprint editors.
The camera speed in the Viewport is separate from zooming in the graphs. Zooming in node graphs like the Blueprint’s EventGraph and the Material Editor’s Graph affects the zoom level by one with each wheel scroll. Base level being 1:1, next zoom out being -1, then -2, and so on. There is not currently a way to adjust the size of those increments from within the editor.