I get what the OP is wanting. It is better to do a regen during a long drive when the truck and exhaust are pretty hot. My Chevy seems to do the same thing, I could drive for hours, it does a regen as I’m pulling into the driveway. Would be nice to force a regen. The problem would be doing one before it’s needed. I used to average about 400 miles between regens. Lately I’ve been getting 650-700 miles between regens, as I only use the truck to tow now.