Can I input an array of derivatives to the integrator and obtain an array as output?

I am new to Simulink/Matlab. I have a 2-element array of time-derivatives as input to a Simulink integrator block and I want to get a corresponding array as output. Is this even admissible? If so, how do I specify the dimensions of the inputs and outputs to the integrator block?

I get the following error when I try to build the model.

Error in port widths or dimensions. Invalid dimension has been specified for 'Input Port 1' of '<foo>/Integrator'. I have seen some people ask similar questions

Thanks.