You can generate detail views from model drawings.
1. Click the layout tab, create view panel, detail drop down, select circular, find,
2.Select the view to use as the enlarged view of the detail.

This is used when a printed version of a mechanical drawing or part drawing has such fine detail, it needs an exploded view to show details better. It would look like a small circle around your object that you want to enlarge, then a larger circle with the zoomed in view of the detail, and tangent lines drawn on each side of the circles.