Off when delete objects when files are large when using 2025

Off when clearing objects when files are large when using 2025
I want to know why

Hem.

I’m sorry, I’m not sure I understand your question. are you asking why Sketchup offers you to purge ?

this is a multinational forum, most of us are not native english speakers, if that’s your case, maybe you can explain your issue in your own language ?