How to set a Column list box to required.
My application should allow the users to select the required columns to proceed with further evaluation of the data. And I want to set the column list box status to required. But it is still displaying optional in the modal. How to set them to required. Button box("X Column", colListX<<Append(colListData<<GetSelected)),
colListX = ColListBox(<<set required(1),nLines(1)),
Button box("Y Column", col
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