title: Mouse hover menu like the toolbar in visual studio
body: <p>Im trying to find out if its possible to implement a panel that pops up containing a datagrid the mouse hovers over the "expander" bit. </p>
  
  <p>Looking for something that behaves like the toolbox in visual studio. </p>
  
  <p>Im having major problems searching as im not really sure what its called. </p>
  
  <p>Please let me know if I need to explain myself better.</p>