RCPS_API_PP_ADDINF 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-RCP: API - Structure Process Parameter Additional Data" 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_RCPS_API_PP_ADDINF TYPE RCPS_API_PP_ADDINF.
The RCPS_API_PP_ADDINF table consists of various fields, each holding specific information or linking keys about RMS-RCP: API - Structure Process Parameter Additional Data data available in SAP. These include RECN (Sequential Number of Data Record), ACTN (Sequential Number of the Change State), LABEL_CPP (Variable Identifier for Process Parameter Item), EQUATION (Calculation Rule)... 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. .