RMF67_PAY_UI is a standard SAP Structure so does not store data like a database table does. It can be used to define the fields of other actual tables or to process "Loans: Screen Fields for Payments" Information within sap ABAP programs. This is done by declaring abap internal tables, work areas or database tables based on this Structure. These can then be used to store and process the required data appropriately. i.e. DATA: wa_RMF67_PAY_UI TYPE RMF67_PAY_UI.
The RMF67_PAY_UI table consists of various fields, each holding specific information or linking keys about Loans: Screen Fields for Payments data available in SAP. These include NVERF (Sequential Number of Payment), NTOTAL (Total Number of Payments), VCBTR (Payment Amount), SCWHR (Payment Currency)... See below for full list along with technical details, documentation, text table, check tables, foreign key relationships, conversion routines, relevant tcodes and example ABAP select code etc. .