preview of the symbols in the library

[MARCOC]

Hello everyone
someone knows where you set the size of the preview on the symbols in the library

put image

this is the original solidworks
if I make a copy of it using the bookshelf in the tablethe result and a much smaller preview

Does anyone know how to give me any explanation? ?

Thank you very much

 

[mawell]

try to open the block and check "the area that occupies". I'm sorry, but I can't explain... Maybe you have a dot away from the design and solidworks makes you a miniature numb to understand it.

 

[MARCOC]

I also tried to put totalmete block out of sheet format
but also there the preview of the library remains gone
Does anyone know how solid creates a preview, if there is a way to resize it, or to understand which posizone uses when creating the image?