ExtJs 3.3.1 - Placing the name of the Group within the framework of the existing Grid

Is there some property or method in order to align the string with the name of the group (in my case the name of Merchant 1) according to the existing grid in the Grid? To not have to prescribe everything in the property groupT开发者_开发百科extTpl (create table, etc.) To edit the icon (which I highlighted in the picture) was exactly under the column of Edit.

Well, or there is some method that has been put kotroy separators between the values?

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