Is there a way to change the "depth" of child tasks in the outline on the left side of the screen?(OmniPlan 3.14.2 for Mac)

I’m wondering if there is a way to make child tasks “deeper”-- in other words, be more indented-- to make it easier to look at the outline and visually differentiate parent tasks from child tasks (and “grandchild” tasks), etc.
I have an outline with tons of levels of tasks, subtasks, etc and I find it hard to differentiate between the different levels.
Any help would be greatly appreciated! Thank you!