You can allow Square Bracket Notation (SBN) expressions that are evaluated before using the property value, using the Evaluate property. See “Square Bracket Notation”.
For some properties, Evaluate property is selected by
default.
You can change the evaluate properties in one of the following ways:
In the Properties window, select the Eval option for the property.
Right-click and select Evaluate.
If you select the Eval option for the Password property,
the value appears as plain text.
Changing evaluate properties