Element visibility

You can manage the visibility of an element on the "Visibility" tab:

• "Visible" - sets the initial visibility;
• "Visibility set by an expression" is an expression that returns type bool that sets visibility. If the expression is not empty, its value is used instead of the "Visible" option;
• "Visible toggled by button" - the name of the button of type MatrixCollapseButton that manages the visibility of this element. See the section Collapsing/Expanding elements.