Lock screen add song to favorites

Xiia has been the workhorse of my commute for probably 5 years or more. Often when I'm driving, a song will come on that I'd like to add to my favorites. It would be great if there were a button to do this directly from the lock screen widget so I can quickly go back to driving, instead of having to unlock the phone, go to xiia, then tap the "favorite song" icon.