Hi Bob,
Thanks for contacting Syncfusion Support.
We don't have direct property to achieve your requirements.
We have fixed the reported query “Is it possible to show checklist box displays
in multiple column” in sample level. Please find the below sample for your
reference.
Sample : https://www.syncfusion.com/downloads/support/directtrac/general/ze/CheckListBox897277405
Please let us know if you have any other concerns. We will
be glad to assist you.
Regards,
Sangeetha G