Having two columns for checkboxes in accordion

Hi, I would like to have two columns for the checkboxes that are shown in the accordion. I don’t want to use data table as there is a border. I would like something like word where the data can be automatically shown in two columns. Is there any possible way to do that?

If it cannot be done automatically, I would like to know how can I show the checkboxes in two columns. (eg. in the example TEST-1 to TEST-3 would be in one column and TEST-4 to TEST-6 would be in another column.

See example
https://webix.com/snippet/8b6f6eb4

Any help would be greatly appreciated.

Thanks in advance.

Hello,
For making the second column, you just need to create another layout
Here is an example: https://webix.com/snippet/c56e5a93