I have an older model that only has the exhaust vent on top to put probe cables through.
I think the hole on the left side of yours (if it is a new one) is for a smoke generator.
I think you could use that if your probes are long enough. I would watch your temp in case you get enough airflow through that hole to let the wood burn instead of smolder.
"Now if i coulf figure out this digital controller I will be set!"
I keep the instructions handy. I have two settings. Smoker temp and internal temp. Being simple minded, I keep things simple. No other programming at all. Geek is not in my DNA.