Microvellum Community

Smart Layer Manger Index Colours

Working in the Smart Layer Manger. 
Is there a way to be able to set Index Colours instead of RGB colours. Wanting to use a viewport but the RGB colours won't work with the monochrome setting to plot it in black and white. Or do I have to go to the layers tab and manually change them. And does this have any issues when turning them into Microvellum Product?