Been Thinking

I’ve been thinking of drawing with Raw Umber Artist Oil Paint. I am trying to visulize how to put on and thin the paint or get a consistency, where drawing is optimized, without the use of a solvent. I’ve read a medium that consists of 50/50 linseed oil and marble dust can be used. I intend to use this method at multiple sites, where solvents aren’t allowed. My biggest concern is to excellerate the drying time without nasty chemicals.