VIVA-XL – How to differentiate same signal waves from different db’s

Hi,

I am running Cadence version ICADV 12.3-64b.8

When I open multiple db’s based on similar testbench (Example: same I/O, Stim etc. but use netlists with different sized devices) and plot a signal from all the db’s, I see them plotted with same signal name on top of each other but there is no way to determine which wave corresponds to which db. 

Is there a display setting that will show this detail for the signals in the waveform viewer?

One solution might be to identify signals as you plot them, but this will not work when I search across db’s for a signal name and then plot it across db’s.

Thanks

Dave