you can create this as a widget on a dashbaord or in a report.
For a dashboard widget, go to the dashboard that you want to add it to and click 'customize page' on the top right.
Add a 'Custom Table' resource.
Back on the dashboard, find that widget and click the little 'Edit' on the top right.
You have to select a Datasource. You can limit what nodes you want by setting the criteria here. Or if your dashboard already have account limitations then you can just leverage those.
When you're choosing that to include you can keep it simple by just adding columns for 'Display Name' and 'Last Boot.'
The widget should then show what you're looking for.
Thanks And there is a pre-defined reports too. Is there any way to get in group wise.