Prefer sharps or flats - bulk change

Currently, with transposing instruments you can change whether that stave should prefer flats or sharps for transposed key signatures, by going to the stave/part properties menu. Unfortunately, this means that when working with brass bands (or other large ensembles of transposing instruments), which I do a lot of, you have to set it seperately for each part. I would prefer an easier way to set it in bulk. For example by highlighting all the relevant parts in the Instruments panel (see image), and then maybe a setting could appear in the properties panel that allows one to make the change for all the selected staves at once?