how to get position(sequence number) of columns in targetdatastore at interface level

Position(sequence number) is not generated for the custom columns of target data store at interface level after applying bundle patche6 in biapps 11g(11.1.1.8.1)

 To resolve this issue,we need to drag the data store(W_GL_OTHER_F) from the Models to the interface of existing Target data store.
It will prompt the message like below.

click yes.then we can able to see the sequence number.