I would like a setting to reduce/increase the credit reward from opeator levels and jobs. A slider in the settings similar to the slider for required quantity and platform limit would be ideal. Specifically a separate slide for jobs and operator level.
A toggle to turn off the massive increase in operator level rewards that starts around level 20 would also be very nice. The sudden x10 boost to rewards completely destroyed the economy in my save and made all remaining upgrades and machines trivially easy to acquire.