title: ag-Grid : enter edit mode programmatically
body: <p>I have a grid with <code>singleClickEdit</code> set true.</p>
  
  <p>I want to enter in edit mode when the grid finishes loading or when the user finishes editing a row.
  I have tried with API <code>setFocusedCell(rowIndex, colKey, floating)</code> but it just focus the cell without enter editing.
  The goal is to build speed editing grid and never use the mouse...</p>
  
  <p>Is there a way to do that?</p>
  
  <p>Thank you in advance!</p>