Hello,
To my understanding you are trying to build a neural network with 5 inpurs and one output. I have created a dummy code below.
net = feedforwardnet;
net.numinputs = 5;
net.inputConnect = input_value
net = configure(net,input_value,output_value);
net = train(net,input_value,output_value);
view(net)
output_value = sim(net,input_value)
Hope it helps