load2disp command

[Akash Tyagi]

Hello everyone,
I am using load2disp command and I understand everything in that command
except the input index.
Suppose I want to convert the fixed load to dispatchable load at bus 2 only.
I tried by using the following command-
clc
clear
close all;
define_constants;
mpc0=loadcase(case5a);
idx1=mpc0.bus([2,3],PD);
mpc1=load2disp(mpc0,'Akash',idx1);
It is not working?
Thanks in advance