Hello. You might find this video ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-RcNqOl2VzTc.html helpful as it covers a simple use case for expressions. If not, we have a playlist called "NX Expressions and Spreadsheet" which you might find beneficial ru-vid.com/group/PLCQNRV-Kp9QA-3Sbmb3Kwx7j2M8jDMuvZ - Thanks for the comment
