What does the trailing LVM mean that is trailing the tone names 13A-16D in the new 'L6Link<->DT' set list that came with the v1.4 FW update?

I could not find a reference and comparing some of them with tone names that do not have the LVM in the same set just shows that they don't seem to be for DTxx use (they use full AMP configuration), but have slightly different pre-amp tone settings and different JTV guitar selections.