How to modify copy transaction data DM package??

Dear Folk,

I am using Data manager package for copy transaction data (Process chain name = /CPMB/COPY) .Here i can select base member one by one but i have to requirement when i select i.e  2017.01 Time and destination  should be come up Year 2018. Means all 21.01 data would be copy in year 2018.

But in destination i cannot see the parent level copy only can see base level (2017.01,2017.02,etc).

So, how could i modified Pls advice me .

Regards,

Wasem