Queries

Hi Experts,

Please clarify these queries.

1.How can we transport a Project that is created in CMOD from one server to another ?

2.How can we implement same user exit for multiple regions for same client?

3.When we have to go for User Exit and when we have to go for BADI?

4.How many Menu exits we can implement for single transaction?

5.What happend to a user exit that is implemented when version upgrade happens?

6.how many screen exits we can create for a single T-Code

7.What are the exits available in SAP R/2 system?How can we differentiate them with R/3 user-exits?

Regards