How does 'delete created backdrop' work?

[Czentnar]

Hello!
I have a question.

Button 'space' pressed - The Active object adds a backdrop.
Always - Delete created backdrops

How does 'delete created backdrops' or 'delete current backdrop at' work?

Thanks!

[MetalGeo]

Just like it says? "Delete All Created Backdrops" will delete literally every backdrop created during runtime in said layer.

"Delete Created Backdrops At" allows you to specify the location of the backdrops to delete in said layer. With the option of fine detection.

Really hard to understand the question here.

[Czentnar]

Yes, that'd be the question. Sorry for my English...
But it doesn't delete the created backdrops if I choose this action.
Thanks for your reply. I won't give up and I'll try to do it.