ericmbarnard/KoGrid — pull request #95 by Crash8308 (2012-10-26 02:46:30+00:00)
Title: Colspan headers

adding support for "HeaderGroups"

this allows you to specify a "headerGroup" in the column definition.
If specified, a new header row appears above the original header Row spanning across the headers defined,

There are also a few tweaks such as the column sort arrows are no longer visible unless active and they appear above the header row. This allows for a cleaner experience using narrow columns and a bug fix for issue #93

This is just like "colspan" for tables.

example:
http://imgur.com/Ut00o