One more note: the presence or absence of “use_label_element” doesn’t affect the result.
This is evident in the demo by the use of the lines
Select Country (required)
[checkbox* your-country use_label_element “China” “India” “San Marino”]
and
Select Fruit (required)
[checkbox* your-fruit exclusive “Apple” “Banana” “Grape”]
Visually, these are the same result, as can be seen in the demo screenshot.
@takayukister, Thank you very much for your work.
In the original problem description, I referred to this link. As I wrote earlier, the Demo screenshot doesn’t show a visual representation of the Wrap function—the options aren’t wrapped to each line, as described in the instructions above (“Wrap each checkbox”).
The screenshot shows that instead of “Wrap each checkbox,” the checkboxes are arranged in a row, one after another.