WSD_MS_INPUT_FIELDS 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 "Helper structure for input fields support" 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_WSD_MS_INPUT_FIELDS TYPE WSD_MS_INPUT_FIELDS.
The WSD_MS_INPUT_FIELDS table consists of various fields, each holding specific information or linking keys about Helper structure for input fields support data available in SAP. These include WSD_MS_INCLUDE_PLANTS (Related plants for material search), FUZZY_CHECKBOX (Material search fuzzy mode flag), MATNR (Material Number), BISMT (Old material number)... 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. .