The new version of Gams-mode has a nice feature that helps you in formatting your model.

You can automatically indent GAMS programs according to GAMS syntax.

 

M-C-\        =       Indent region.  Specify region and type M-C-\.

TAB          =       Indent the current line.

 

On the left you see the model before using the indent feature of Gams-mode. I selected the region and typed M-C-\ (`indent-region’).

You can see on the right side what happened. The set and parameter declarations are nicely formatted and the loop is clearly