ArcObjects: How to enable associating levels to masked layers?

Discussion created by mikedailybuild on Jul 28, 2017
Latest reply on Jul 28, 2017 by mikedailybuild

In the advanced drawing options for Layers there is a checkbox 'Enable to associate levels to masked layers'. I'm trying to figure out how to enable this via ArcObjects. I can cast an IMap or IGroupLayer to ILevelMasking to retrieve the levels as a string, but nothing in that interface allows me to enable the option. Any ideas?