[Help] with somting easy

im working on arrows dont relly want to wast my time finding it but how wold i put it so when u us a command it dont show evre one the msg like if u type /lvl no one will see the msg /lvl help me if u can if not il do it when i get done with arrows if i get done with arrows xD xD

Do you mean so noone will see when you type a command? At the normal chat area, where it makes it able to see the chat, you just do:

if (!Message.StartsWith("/")
{
Chat HEre
}