Why can I not create new sublayers in Illustrator CS5 ?

https://forums.adobe.com/thread/2026207


Monika Gause 5-Dec-2015 12:59 PM (in response to stuart schmaling) 
                    

What is selected when you try to add a sublayer?

 

sublayers can only be added if the layer is highlighted in the layer panel. Not when an object is highlighted.

 

No sublayer:

 

Sublayer possible