Selecting a looped section

[Steven V Sweat]

Is there a quick way to "select" a looped section?

In other words, create a loop section and then select that section

[Klaus]

Left click between the Loop Markers when the mouse pointer changes to a magnifier with a down arrow. 

This will select the section across all tracks.

If you only want to select the section in the Time Ruler, right click in Time Ruler and use "Select Loop Region" from context menu.