Directional control in Stylized filter brush strokes via Flow maps

Hi, I'm an indie animator/director new to Substance 3D Painter. The new stylized filter is great, but it doesn't have any brush stroke direction control except for the 'make it random' and 'follow mesh' option. I'm actually really surprised the filter doesn't have a Flow map input, it just makes more sense than the default 'generated by random noise' direction. I'm assuming I might be missing something, or having a flow map defeats the purpose of a filter in the first place.

Is there any way to manually input brush stroke directions with stylized brush strokes? any workaround would be fine, even if its manually painting and not using the filter.