"Add and stay on page" option when adding widget to dashboard

When I add a widget to a dashboard, Graylog immediately navigates to the dashboard I selected. However, I often want to just add a bunch of widgets to a dashboard and this makes it impossible.

My workflow is usually to build a search result and create a few widgets on the search page. Once I'm done with that, I want to add some of those widgets to the dashboard. In the current implementation, I have to create the search result over and over again after navigating between the dashboard page and the search page. This costs me a lot of time.

## Your Environment

* Graylog Version: Graylog 3.3.5