Adding a column to "Cases" summary/main page grid

I need to add a column to the "Cases" Activity and History view

I want to add the a column for the Description field of a case record.

Extra: I'd like to limit the amount of text shown in the cell but maybe have the full description appear in the 开发者_如何学JAVAtooltip.

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Goto Settings -> Customizations -> Customize Entities. Select Incident and open the Views. Select the view which you want to edit. On the right side of the editor you can add new columns.