Hello is anyone here that can help me with the "Symbol Sprayer Tool" !? #URG#

Hello can someone please tell me how to reduce the "symbols size" while using the Sprayer Tool? (Im not talking about editing them after or reducing the diameter of the tool itself but instead the symbols or brushes that get sprayed..) I can't seem to be able to do that so I can't use them in a smaller size like I wanted to cover a surface! Is it possible?

Is it something we can do on the preferences menu? Because I can't find it in the editing window of the tool itself, the symbols don't change size (just intensity and ...)

Thanks