Not sure what you mean, trailer brakes as an option?
If you mean, can you order a trailer brake controller to be installed at the factory, I doubt it, but if you want to know for sure, you could contact Pleasureway directly, or one of their dealers, and ask. I don't know of any class B vans that come with more than a factory installed hitch receiver and a 4 pin connector, but that may have changed. I think many people use the hitch receiver to add a bike rack, rather than to actually tow something. Maybe some do.
Whether or not one can be added afterwards is probably model dependent. A dealer service department should be able to install one for you.
Mike. Comments are anecdotal or personal opinions, and worth what you paid for them.
2018 (2017 Sprinter Cab Chassis) Navion24V + 2016 Wrangler JKU (sold @ ????)
2016 Sunstar 26HE, V10, 3V, 6 Speed (sold @ 4600 miles)
2002 Roadtrek C190P (sold @ 315,000kms)