RVIEW_SCREEN_MODIFIER 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 "Information on Screen Modification" 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_RVIEW_SCREEN_MODIFIER TYPE RVIEW_SCREEN_MODIFIER.
The RVIEW_SCREEN_MODIFIER table consists of various fields, each holding specific information or linking keys about Information on Screen Modification data available in SAP. These include MODE_REQUIRED (Required Entry Field), MODE_INPUT (Field Ready for Input), MODE_OUTPUT (Field Only Used for Display), MODE_INVISIBLE (Field Is Hidden)... 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. .