Shop tooltip only in right side of Chart only on Tasks (not root elements)

Hello!

How can I do this: show tooltip only popup on Tasks in right side (not show in left list and not show on root elements)

Hello Alexander,
You can use onMouseMove event handler to detect that mouse is over the grid or over the parent task, and use different tooltip templates:
https://docs.dhtmlx.com/gantt/desktop__tooltips.html
https://docs.dhtmlx.com/gantt/api__gantt_tooltip_text_template.html
Here is an example of how it might be implemented:
http://snippet.dhtmlx.com/722509b27

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