From what you are describing, it sounds like many of the data points have the same lat/lon coordinate. There is no way for GE to automatically do what you want it to do. You would need to combine your data before importing it into ArcGIS. So instead of data formatted with "lat,lon - data" such as:
1,1 - Data X
1,1 - Data Y
1,1 - Data Z
You'd convert the 3 lat/lon data points to a single lat/long data point
1,1 - Data X,Y,Z
That might be tricky to do, depending on the format of your source data.