How to add inport blocks of subsystem if know only subsystem input 's dimensions?

Hi bros

As you know, we can get dimension of block as following

>> evalin('base', [ 'untitled' '([],[],[],''compile'')'])
>> ph = get_param(gcb,'PortHandles')
>> dim = get_param(ph.Outport,'CompiledPortDimensions')
dim =
    -2     4     1     2     1     1     3     4     5     6     5     2     3     4     5     6 
>> evalin('base', [ 'untitled' '([],[],[],''term'')'])

dim is dimensions of Bus Creator block and input subsystem block.

But in the opposite way, I have only subsystem block and dimension. How to add blocks for satification subsystem block.

Do you have idea? please support me.

Thank you so much