Well, when it comes to vArranger, so many possibilities and flexbility.

https://vimeo.com/channels/groovelily/17623586

The woman uses the Pok wireless foot controller. Basically, it is a computer keyboard in the form of a foot controller. If I remember correctly, you can assign 36 functions. I use it with vArranger to change sounds or perform any function in vArranger.