Reading a udt palced in a 3d array

Hi.

I would like read read this UDT from one one your mashines, and all the other udt’s

It i placed in a 3 dimensional array.

An can read each tag i the array, but I would like to read the struct from the PLC as an Document or an onter data type

But is says error decoding

Does any knows I’m dooing wrong?

This might be possible in Ignition 8.3, but I don't think it's supported in 8.1 or prior.