Just a way to have that functionality available quickly1. Make a custom Lable in Ticket Details, call it "Workload Weight" for example, make it required. 2. In Config Section, make enable validation as NUMBER3. Get a community version of MySQL Workbench and construct a custom query that will do the addition4. Either generate external report against MySQL server using that query (on demand or scheduled) or figure out how to add that query to php code. (that would depend where you want it to be shown and how)P.S.http://sourceforge.net/projects/sqleo/it is a very nice visual query builder, allow to build complex query without knowledge of SQL syntax