Regarding adding dynamic row span and col span in Datatable Header

Hi ,
I have to add Dynamic row span and Col Span in Datatable header according to my condition. Condition is that , if you observe attached snippet. There are two text input i.e group and Channel so on btn click I have to add header in Datatable Just like follow.

group one | group two | group Three

ch one | ch two |
_-------------------------------------------------------------

I have to add three layer header according to My condition
so please , given me a solution so that I can n add header col span androw span dynamicaly

https://snippet.webix.com/eulclrbk

Hello @Ninad,
If I understood you correctly, here is an example showing how to add complex header with colspans/rowspans dynamically:
https://snippet.webix.com/mt6ibnvh
In the example above groups are always added at the same level (top),
and channels are their children, and they are also on the same level.
When you click Add Group , columns will always be added to the top level, regardless of the selected item in the tree. To add a channel, you need to select the desired group (it is added only to groups, it is checked at the level).
Please correct me if I misunderstood your requirements.

hello @annazankevich ,

Thank u so much for the given solution. but here groups are always not required to add at top level only i.e we can add group under another group upto 3 level. Upto 3 level we can add channels & groups. How can we do this?

Also we need to delete node from tree on node click & corresponding column from table.

Please refer below updated snippet.

https://snippet.webix.com/021e39c0

Please provide solution for the same.