How does Easy Language Server send information to all customers who retrieve it?

I don't understand what the edit box is for.

. Local variable n, integer type

. Count loop header (super list box. Number of entries (), n)

Server. Send data (super list box. Take the title (n, 0), "Data to be sent",)

. Count cycle tail ()

/* Assume that the 0 column of the super list box is the customer IP. Please modify it according to the source code.