Zoom in & out should be possible by mouse pointer not working

Gantt
#1

Can we make zoom in and out with mouse pointer?

#2

Hello Sharp,
Right now, you can change the zoom levels via the mouse wheel.
You can check how it works in the following sample:
https://docs.dhtmlx.com/gantt/samples/03_scales/14_scale_zoom_by_wheelmouse.html
If you need something different, please, describe your requirement in more detail and send me a picture of how you imagine it should work.