RMSTS_DDIC_TECH_DEF_LAYOUT 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-TLS: Layout-Specific Definitions of a Hierarch. Object" 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_RMSTS_DDIC_TECH_DEF_LAYOUT TYPE RMSTS_DDIC_TECH_DEF_LAYOUT.
The RMSTS_DDIC_TECH_DEF_LAYOUT table consists of various fields, each holding specific information or linking keys about RMS-TLS: Layout-Specific Definitions of a Hierarch. Object data available in SAP. These include TABLECREATE (Output Object as Table), NEWLINE (Line Break), NEWPAGE (Page Break), ROWKEY (Row Key)... 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. .