The shortest path is now available be pressing tje SHIFT key (if you use the Unfold3d default mouse interaction settings, otherwise look at the Help window that shows the current mouse interaction settings)
The edge loop is available by double clicking on the edge. The previsualisation if the edge loop can be activated in the Edge Loop panel, wich is on the right side of the UI.
This new binding allows you to have a direct access to the two path selection system without having to change a mode. We found it more handy, but it could be a wrong decision ?