For the smaller screen : yeah it can be done, I thought about it after posting this binary, easily done.
For replacing 1 soundcard by another one : not convenient for now, it obliges to change a number by a string as a setting, and for now I prefer to avoid it, so I think it's going to be my limit, you'll have to live with it !
edit : actually it might be possible to do something for the soundcard too, it's not convenient because it breaks compatibility with the dos version, but it shouldn't be too complex to do, I might have a closer look later.