RDISB_STEER_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 "Control Data for Disbursement User Interface" 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_RDISB_STEER_UI TYPE RDISB_STEER_UI.
The RDISB_STEER_UI table consists of various fields, each holding specific information or linking keys about Control Data for Disbursement User Interface data available in SAP. These include G_GUI_MODE (Interface Mode), G_LOGHANDLE (Application Log: Log Handle), G_OKCODE (Function Code), G_TABNR (Function Code)... 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. .