One of the nice features of Gams-Mode for Emacs is the possibility to quickly look up the identifier part of a variable, parameter or set. This is a nice feature in big models or when you haven’t worked with the model for some time. Just put the cursor somewhere on the parameter in the code you are looking at and hit F7. The screen will split and an additional side pane will appear.
Here is an example: in the lower pane you see the file readdata.gms, where I am working on, and the cursor is on the parameter “total” (red