The Radio form element can be used to select a single option in a group. This is useful if you have a small to medium number of options. For a better usability, make sure that each radio option is worded comprehensibly.
Preselect / Disable Radio Buttons
In order to preselect or disable radio buttons, open up the radio element, scroll to the radio options and find the “Sel” (preselect) and “Dis” (disabled) column. Select the relevant radio option you want to preselect in the “Sel” column.
(Please note that in the “Sel” column, radio buttons are displayed instead of checkboxes in this image)