Settings for a trailer

Is it possible to edit the name for my vehicle so I can have two versions, one for normal driving on a trip and one for when we are also towing our camper trailer?

So far, I have only used the paid version of ABRP with an OBD device linked on a trip without our trailer. ABRP seemed to do a good job adjusting to our actual driving performance.

Am I right that ABRP would similarly learn and adjust to our vehicle’s actual performance while towing our particular trailer if we created a ‘plus trailer’ vehicle in our vehicles menu and selected that for trips with the trailer?

Alternatively, should I just have one version of our normal vehicle, select ‘medium trailer’ when the trailer is attached and ABRP will adjust anew on each such trip and quickly learn whether our trailer has more or less drag than you modelled for a ‘medium trailer’?

Do we add the weight of the trailer in addition or is that already included with an assumption when selecting ‘medium trailer’?