RMXTS_DYNP_OBJ_CP 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 "TMS-DIA: Copy Dialog Box - Objects That Can Be Copied" 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_RMXTS_DYNP_OBJ_CP TYPE RMXTS_DYNP_OBJ_CP.
The RMXTS_DYNP_OBJ_CP table consists of various fields, each holding specific information or linking keys about TMS-DIA: Copy Dialog Box - Objects That Can Be Copied data available in SAP. These include OBJKEY (Objects That Can Be Copied), OBJTXT (Trial Data to Be Copied)... 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. .