Hi Mohammad,
You could achieve this functionality by using GoTo Block and From Block in Simulink. Have a look at the example : https://in.mathworks.com/help/simulink/slref/signal-routing-with-from-goto-and-gototag-visibility-blocks.html
The Goto block passes the input signal connected to it to the corresponding From blocks without actually connecting them.
Note: Make sure to set the right Tag Visibility parameter in GoTo block which determines signal accessibility to the From block.
Hope it helps!