Edit Expression dialog box
This dialog box appears so you can specify which expressions you want to monitor with the Data Viewer.
To specify an expression:
1.
2.
 
For Operators, click a button or double-click an operator from the list.
3.
Click Evaluate Now to display the results of an expression, or click Monitor to add the expression to the Data Viewer and close the Edit Expression dialog box.
Related topics 
Using the Data Viewer (FileMaker Pro Advanced)