This entire scenario is controlled in runtime.In the below
Class - /SAPSRM/CL_CH_WD_MON_CONTAINER
Method - /SAPSRM/IF_CLL_MON_CONTAINER~INIT_MAPPERS
The line
" Create the monitor mapper for business partner changes
CREATE OBJECT mo_mms_bp TYPE /sapsrm/cl_ch_wd_mms_bp.
" add mapper to the mapper_table.
me->/sapsrm/if_cll_mon_container~add_monitor_mapper( io_monitor_mapper = mo_mms_bp ).
Is responsible for bringing this on UI. You could write a overwrite exit and remove it and will be invisible from UI.
Hope this helps.