In our environment we use BPT a lot, thus our activity entity grows a lot and a system query testing for active processes creates a big load in the system. We have processes runnng for months and the number of activities on the processes are exceding the max of 10k and thus the processes are suspended which cases problems. We already have a proces cleaning program, but it cant delete activities of running processes, stopping them and starting a new proces isn't an option. So we want an option to delete old activities in the activity table, something like ActivityDelete. We know messing with system tables can be a problem, but n this case we realy need to do this. To explain, this is a list of total of activities on a number of processes
(we do distibution of rental homes, on 1 house sometimes 15k people react thus causing a load of proces steps to happen)