Chart Titles including variable names

I am interested in titling a line chart to include in the title the variable definitions from quickforms.  For example, a chart of CPU utilization for a selected system might be "CPU Utilization for system <variable>".  I understand that I can assign the flow variable to be the (entire) chart title, but, don't know how to include the variable defintion in a longer string

Thank you in advance for your replies

Brad

You can create another flow variable with the full title using the Java Edit Variable node.
 

Thank you aborg.  That did the trick!