How can tracks control flow in Simulink model???

Hi all,

I want to list all control flow in the model. But if i choose 1 milestone is output block, and find forward block via line connection, it is very slow and long. I need a algorithm.

Each control flow is array of block and line handles, starting from selected block.

There are many flows in flowing model, but examples only 3. So output will be matrix. Please help, Many thanks

1:

2:

3: