How to trigger Add Child in Tree view?

[OmarJaber]

Hello guys,

I wonder how can I trigger Add Child click event in Item Group Tree

What I need is when click on Add Child get the current parent which is Food and Beverage so I can get all child item groups and set next Item Group Code automatically!

Any suggestion or reference whould be greater
Thanks

[OmarJaber]

Solved by handle data before insert to item group list using before_insert event