Using/Calling Fiori custom fields in MIRO (DRSEG_CI and CI_DRSEG_CUST)

Hi Experts,

Implementing BADI MRM_ITEM_CUSTFIELDS, we tin capable to adhd customized tab and populate the customized fields appended in DRSEG_CI and CI_DRSEG_CUST.  

Since we are successful S4 Migration and having customized fields created by SAP which are maintained successful RSEG table, we would similar to usage the aforesaid customized fields for this MIRO enhancement, alternatively of creating a caller 1 successful DRSEG_CI and CI_DRSEG_CUST arsenic it looks a duplicate and occupation successful syncing the posting information i.e., updating existent clip unrecorded information some successful the Fiori customized fields and DRSEG_CI  customized fields. 

Please fto maine cognize immoderate suitable solution to usage the Fiori customized fields that are created successful RSEG table.

Thanks successful advance.

Kind regards.