SPSarveswaran Palani Syncfusion Team January 4, 2023 03:46 AM UTC
Greetings from Syncfusion support.
From your query, we suspect that you want to know how to include a "Select
All" option for each custom group in column chooser control when using
templates. We suggest you to customize your requirement using column chooser
template to overcome the issue at your end. Kindly refer the attached UG
Documentation for your reference.