sounds like you might want the damage control boxes instead, they have tube overdrive built in, personally i like having dirt seperate
however… here's some ways to get a little dirty… the vintage delay you can turn down the bits so it sounds kind of old and crusty, on delay in general turn up feedback and slur/smears/spreads
on the modfactor i think the retro tremolo or one of the trems has overdrive for the xknob or intensity knob, maybe it's bias trem i don't remember offhand… one fun thing is you can assign an expression pedal to that knob and then you can turn the grit on gradually
