Insights can help you change the value of multiple fields across multiple rows.
A common example where this is useful is marking a selection of jobs as complete as one action rather than going in and updating each job individually.
To do this, just select one or more rows in your Insight grid. That will show you the bulk action icons.
Click on the edit icon to access the bulk edit panel.
You can now start adding the changes you want to make.
Once you've added all the changes you want to make, just click Apply.
That's it. All done.