Click on New Joint Load.
Select Joint.
Joint Load panel becomes visible.
'U' is the load in global X-axis direction.
'V' is the load in global Y-axis direction.
'W' is the load in global Z-axis direction.
'X' is the moment in global X-axis direction.
'Y' is the moment in global Y-axis direction.
'Z' is the moment in global Z-axis direction.
You can use this panel to enter lateral loads such as wind or earthquake load in global Y-axis direction i.e. in front of 'V'.
Enter desired loads.
Click Ok.
Joint load list will become visible.