Stand ventilation??

Maybe someone from the community can help me: Can you operate the stand heating installed by Volvo (V70 II BJ 2005) also in the stand ventilation operation in the summer? This is at least not possible with Audi and Volvo Germany. Will this be possible in the V70III? Or is it only the solution, do not take a stand heating ex factory and then have a webasto installed afterwards (then there is also a mobile phone remote control on top). Hopefully someone knows something. i