Changing Index on Aggregation based widgets after Copying it from another dashboard

Hi,
I am having the dashboard1 which is created using index1 data. The dashboard contains all types of visualization but I want to talk about aggregation based widgets eg. Gauge, Goal, PI etc.
When I copy the aggregation based widgets from dashboard1 to dashboard2, The index in dashboard2 remains the same as index1.
I want to change that index1 to index2, but I can not find any option or settings available there.
Can you help you, How can I achieve this?

Hi
You can clone widgets on a dashboard

however you can't simply change in index pattern of the cloned visualizations

Using our new default way to create visualizations, Lens

Best,
Matthias