Here's how you can do it:
colModel:[ { name:'email', label: 'E-mail', editable: true, hidden: true, editrules: {edithidden: true} }
The E-mail column will not be displayed in the grid, but it will be present in the editing dialog box.
BTW to achieve the opposite (display in the grid, but not in the edit dialog):
colModel:[ { name:'email', label: 'E-mail', editable: false }
Tomasz Nurkiewicz Feb 02 2018-12-12T00: 00Z
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