A comment control combines a comment entry field with a checkbox:
You can create a comment control using the <Comment> tag.
Copy
<Comment>
<Row>n</Row>
<CommentField>data_class</CommentField>
<FlagField>data_class</FlagField>
<IsReadOnly>True/False</IsReadOnly>
<IsRequired>True/False</IsRequired>
</Comment>
The <CommentField> tag identifies the source of the comment field while the <FlagField> identifies the data class that stores the state of the checkbox.