I usually listen to styles one by one to select my favorites. These styles can be from some installed pack, or from a variety of styles downloaded from the internet...
I put on a pendrive, in the root folder, the styles that I download from this site, for example, and I listen to them one by one. The ones I like I save on another pendrive with the styles I use the most.
On the s910, since the rhythm is already in the keyboard's temporary memory, I just insert the pendrive with my favorite styles and do the save operation: usb button > b (styles> 6 down and 8 up.
On tyros5, as it has two usb inputs, I can connect two USB sticks, transfer the style from one to the other directly and save it in the registry with the style already in the right place where it has to be.
Greetings,
Gabriel