FRMLS_MOD_SELOPT_CTRL 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 "RMS-FRM: Modeling, Control Structure for Partial Selection" 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_FRMLS_MOD_SELOPT_CTRL TYPE FRMLS_MOD_SELOPT_CTRL.
The FRMLS_MOD_SELOPT_CTRL table consists of various fields, each holding specific information or linking keys about RMS-FRM: Modeling, Control Structure for Partial Selection data available in SAP. These include PAR (Parameters for Formula Explosion Modeling)... 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. .