Increase limit on observers with Observer Points tool

[MarkStewart]

 The current limit on the number of observers in the Observer Points tool is 16.  While the nature of the tool's output makes a much larger number impractical, it does seem that the 16 limit could be increased to something like 24 observers, and still get results that were easy to interpret.

[XuguangWang]

Thank you for the request.  In fact, we have since released a new tool, Viewshed 2, that offers this capability and also supports up to 32 observers.   You can perform your observer point analysis with this tool by setting the Analysis Type parameter to Observers.