i just want to be able to populate a text box when a specific value is entered. currently the document has a combo box with two options and an area where a value is entered. the user chooses if the value is in spec or not. sometimes this part is forgotten so i want to be able automatically change the result if the value entered is within spec. i don't know how to do it if it's on the document itself. i have placed two boxes onto the document to see it working. if there is a way of doing it without using any text boxes then that would be better