title: Declare Jmeter variable from a property value
body: <p>How can I declare a variable name by using the value of a property?</p>
  
  <p>For example, I have the property <code>propertyName</code> with the value <code>propertyValue</code>.  I want to declare a variable with the name <code>propertyValue</code>. </p>
  
  <p>I've tried like <code>${${__P(variableName)}}</code> but such constructions doesnt work.</p>