No, this is not currently possible. Generating AO from the displaced mesh should give you more accurate results though. Can you an image of the problem you're having do it this way?
Hi! is it possible to generate AO map in MT without high poly mesh, just using displacement map? In Knald you load in displ map and then you can get AO, cavity,... Knald gives me some artefacts and Marmoset would give me better quality. I need it for terrain, high poly meshes. If I add displ in a imported plane in Marmoset…