On my contact form, I have a contact type drop-down list and a Contact Type Information section which includes checkbox for every contact type . When a contact type is selected from the drop-down list, the checkbox for that contact type in the Contact Type Information section needs to be systematically checked and become a read-only field. All other contact type check boxes in the Contact Type Information section would remain editable and should be able to be manually selected as an additional contact type.
How can I achieve this function?
Thank you
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