title: Customize Interactive grid toolbar with a new button to send mail
body: <p>I have a requirement to have a custom button appear in the Interactive Grid (IG) toolbar area, and upon clicking this button it should send email based on the various status change that the user will do by using a select list in the report.</p>
  
  <p>Following various resources, I have been able to customize my IG toolbar to include my new button but I am not sure how I can achieve the processing part i.e. to get the IDs &amp; Status changed rows and then pass the IDs of these rows to an action which is linked to the pressing of the new button.</p>