most probably yes. i don't know the layout of your model, but from your question i suspect it is similar to ours. we have three sildeouts that are hydraulically activated. you press the slideout out button and the hydraulic pump runs and pushes the slide outs, one after another. the that moves with the least pressure moves first ending with the one that needs the most pressure. up in the front near the hydraulic pump is a manifold with three screw in type valves in it. these valves control the fluid getting pumped to each slideout actuator. if you do not want a slideout to get moved out when you push the slideout out button, simply turn the valve off for that actuator so the pump does not pump fluid into it.
2015 cardinal model 3825fl
2015 dodge ram 3500 dually