How to get source and destination block name (subsystem, in/out port) under multiple step subsystems?

How to get source and destination block name (subsystem, in/out port) in simulink model?

I mostly got some solution from the another question below, but it is too hard to read the subsystem and port names under multiple step subsystems.

https://kr.mathworks.com/matlabcentral/answers/452859-how-to-obtain-the-source-and-destination-block-names-and-port-numbers-connected-by-a-signal-in-simul