Resolved! May I know how this syntax work please? h".z.pg:{.Q.trp[(0;)@value@;x;{(1;.Q.sbt y)}]}"
h".z.pg:{.Q.trp[(0;)@value@;x;{(1;.Q.sbt y)}]}" .z.pg is the message handler on the server .Q.trp takes 3 arguments: #1 the function: (0;)@value@ (the default value of .z.pg is just {value x}, how does this translate to that?)#2 Argument: x (which is...