xfce4-panel Window Buttons panel plugin - keyboard shortcuts?

[Piscium]

The Window Buttons panel plugin allows one to switch between
application windows using buttons, also it is possible to switch with
the mouse wheel if enabled in Properties.:

https://docs.xfce.org/xfce/xfce4-panel/tasklist

Is there any keyboard shortcut (preferably configurable) to do the
same as the mouse wheel, switch to the previous or next window?