Expense Report - attach Images documentum

Hi All,

I have some doubts regarding ESS and MSS travel expense module.

1) Can we integrate expense voucher document images (documentum) with travel expenses module?

2) Do we have the same functionality inside Travel expense module of ESS and MSS portal?

2a) Can a person creating travel expenses in portal view images?

2b) Can a manager view those voucher images using travel expense approval module of mss?

3) Do we need any customization to achieve the above functionality?

Any pointers are greatly appreciated.

Regards