Need help exporting metalness and roughness map

Still very new to SP.

I am trying to wrap my head around exporting my finished product's maps.

Not sure what settings I should be using.

How do you export the roughness, metalness, AO, etc maps in RGB color formats?

I have tried changing the color management, base color settings of them under the texture sets, rebaking, tried different export options, and no matter what I'm trying to do, it keeps exporting the AO, Roughness and Metalness (metallic) maps as grayscale.

I need the exported maps to be RBG not Grayscale.

So here are the questions I don't know what if at all needs to be changed to make the above problem work correctly.

What initial project settings?

Which color space?

which texture settings?

Export setup settings?

and any other settings that I have not asked about?

The game I am recoloring my project use the following.

• _am.PNG.. Diffuse (just the colors of the project) no changes needed

• _gmm.PNG
• Red channel contains roughness map
• Green Channel contains metallic / metallness map
• blue channel is used in game as a server side variable styles, camo,  etc texture maps
• alpha map 

• _ao.PNG
• Green channel Ambient Occlusion
• Red channel used as a snow texture map
• Blue channel used as a dirt texture map

I just need to know how to make Substance painter export the metal, roughness, and AO maps in color NOT grayscales and I can do the rest np.