DataTable column summary

Webix JS
1

We can calc sum by column with this :
footer:{content:“summColumn”}

How we can to display rows count in footer?
Something like this : footer:{content:“countColumn”}

Thank’s

2

You can create your own active elements for header and footer.
Check the next sample
http://webix.com/snippet/8a3b9a7d

3

ok.Thank’s