Automatic modification of an element's status

Hello,

I have the following use case. I defined :
- New workflow status in the following order : A --> B --> C --> D --> E --> F --> G.
- A workflow W1 : A --> C --> E --> G
- A workflow W2 : A --> B --> D --> F -->G
I have a project P1 with the workflow W1 and a sub-project of P1 called P1.1 with the workflow W2.
My questions are the following :
- Can a project and its sub-project have 2 different workflows ?
- If I manually change the status of P1.1, does it automatically imply the same thing for P1 ?

Thank you in advance for your return.

Best regards