In situations where you have more materials in the list than can be shown on a single screen, dragging materials to replace existing ones can be challenging. When you are dragging materials and reach the top of the list, the list does not automatically scroll up.
For example i want to use a wood material from the live DB and it happens to be at the bottom of the list. I want to drag this up all the way to the top of my octane render materials list to replace a material near the top. I can not because the plugin does not automatically scroll up once you reach the top of the visible list.
There are some workarounds like creating a material copy and that will shoot up higher up the list than the live db materials, or by replacing a single scene surface and then once the material is higher up the list replacing the octane material in mind afterward. But would be good if the materials list started scrolling once your mouse was at the upper limit of the visible list.