new style of visulaization

[joe]

Good morning to all
I created a new display style in a design. this style is listed among the deleteable objects when I use the command "elimina" and then when in the design the same style is not in use;
My question is:
Can I somehow make this "indelible" style?

Thank you

 

[GP.]

I don't think that's possible.
You could export the style to the instrument palette, if you want to remove it, you would have the option to re-check it or return it to the style window.