Hi Ibrahim
You have the answer for your query. They are called process variants and you could use it in other chains wherever you load the infocube.
To learn new things in BI, getting information in google or SCN is good but the best approach is to do things directly in the system. When you try by yourself, you will learn a lot of things and this way you will never forget what you do and what you learnt.
You start doing things and when you get stuck, you always have us to help you. Without trying anything, if you come to us, we will also lose interest in helping you. Dont depend on us completely.
All te best
Regards
Karthik