glad my illustration was helpful, you can use this referencing of objects to protect your file if you are sending it to someone you don't want him to select or edit your objects,

try to select the option by right clicking on the play bottom

I want the instances to be directed toward the center please help me
It is a surface emitter from the cylinder I inverted the normals but I want them oriented towards the center.
Also I want them...

I want the instances to be directed toward the center please help me

Thanks Genevieve
thanks so much for your detailed feedback, I benefitted a lot of it, am using physical camera and lights I have main sun and HDR on the dome as well they work together for straight...

On my interior architecture rendering

https://m.facebook.com/3dessamaya/photos/a.187805511698281.1073741829.187742998371199/214415839037248/?type=3&source=48

it is all on the display override in the attributes of the shape not that make the display type: reference so you can't select it, make it back to normal

some of the history nodes are damaged and maya cannot evaluate them and connect them with other nodes.

select the damaged nodes that have an error message in the script editor and block their node...