Symbology value based on Definition or query

[RobertBorchert]

You can create a Definition Query to show features that match a Defintion and you can write it in a format to look at parts of the attribute.

Example:  I have a number of points with location info.  A part of each point has the section it is supposed to be in.  You can write a Definition query to only show those points in which the correct part of the attribute matches your criteria.

What I would like to see in the Symbology tab is the ability to create symbol values based on the query.

Example.  CustomerNumber is 06-02-101  with 02 being the section number.  Write a query such as mid(CustomerNumber,4,2).  Each point would now be symbolized based on the 4th and 5th character of the attribute.

This is a simple example but the idea would allow you to quickly and easily change symbology without having to create a new attribute and populating it with a calculation.