Is it possible to create infosource on two diff datasources?

Hi Everyone,

I have two datasources (0customer_attr,generic datasource) coming from ecc

I am using 0customer_attr datasource for customer related fields and generic for addresss related fields

1.Since the datasource structures are different Is it possible to create infosource to merge these transformations in bi 7.3 version?

2. If yes how can i create it?

Thankyou,

Kavya