COOIS BADI Workorder_infosystem

Hello SAP Experts, I´m struggling with the following problem. I want to add material NR and material text to Coois operations report.

I have tried to implement according to 615176 but the field is not field. I have implemented workorder_infosystem badi method TABLES_MODIFY_LAY and even if i use oss example its not working.

When I import from Memory, lt_oper remains empty ? Do you have any advise ?

IMPORT iooper_tab to lt_oper FROM MEMORY ID 'IOC11'.

CHECK NOT lt_oper[] IS INITIAL.