Can I adjust the working set size of tasks from the client?

The project I'm connected to allows between 1-8 work units at a time or an unlimited option, when the option is set to 1 for example then the working set is correctly calculated, however your are limited to 1 WU at a time which is wasteful given my computers have many more than 8 cores.

If I choose unlimited then I can use the work buffers as set in the BOINC config but the working set is not calculated correctly anymore so once it thinks it's used all the memory then it will not start any further work.