title: How to add options to mouse-right-click menu in Powershell forms
body: <p>I have a basic <code>Powershell</code> form with a <code>textbox</code>. When I right-click on the <code>textbox</code>, a standard menu appears with copy, cut, paste etc...</p>
  
  <p>My goal is to add a "clear log" option, that clears current <code>textbox</code> content. How can I add this option to right-click menu instead of doing/drawing an actual separate <code>button</code>?</p>
  
  <p>Option will be enabled for this form only, I am not looking a general mouse-right-click solution from registry</p>