Hiding Columns in Grid

I am specifying grid.enableHeaderMenu() but the option to hide a column is not showing up. Any suggestions?

Please check if you have attached file dhtmlxgrid_hmenu.js. Also check if your browser allow custom right click events.

Where in the documentation does it specify that enableHeaderMenu(); must come after init()?

Sorry for inconvenience, unfortunately it was missed in current documentation, next version will contain fix for the functionality , which allow to call the command in any moment of time