info below

flowchart TB a --> b subgraph id1 [Test] a --apa--> c b c-->b b-->H end G-->H G-->id1 id1 --> I I --> G
flowchart RL a --> b subgraph id1 [Test] a --apa--> c b c-->b b-->H end G-->H G-->id1 id1 --> I I --> G
flowchart RL subgraph id1 [Test] a end b-->id1
flowchart RL subgraph id1 [Test1] a end subgraph id2 [Test2] b end a --> id2 a --> b b-->id1 id1 --> id2