Hi BLANDIN Ewen,
Greetings from
Syncfusion support,
Based on your query
need to add custom action on row double click. You can achieve your requirement
by using Syncfusion Ej2 Grid's recordDoubleClick
event. This event triggers when record is double clicked. Please refer the
below Api for more reference,
Api: https://ej2.syncfusion.com/documentation/api/grid/#recorddoubleclick
Please let us know
if you need any further assistance.
Regards,
Vikram S