How to create a custom column header

[basurahan]

This is a good editor thanks for the hardwork.

Im just wondering how can I create a custom column header because there is a feature in the list with custom column header and yet there is nowhere to be found on how to create one on the readme. I want to create a header like this one.

[cscan]

This is a nice feature and commonly used in application. I am also looking for this feature in the future release

[Versus2017]

Hi, I have the same problem, I need to customize column headers with sub-headers in my project. is the feature can be used?