Probe
To view the node information, select the Probe icon and left click on the scene in the viewer window. This action picks the nearest node to the point clicked and displays the value as a label.
Multiple Probing:
Click Label List icon
Check Multiple Probe Labels under Probe List tab as below.
Displaying all results for probing node:
Click Probe icon
Press and Hold Shift key
Click a node
Now all possible results are displayed for the clicked node number 33.