CST - How to configure Job Control Center to use DC distributed simulation mode like in Sweep?

Job Control Center allows adding multiple CST Studio Suite  files at once. 

In the settings, I found that the Main Controller can be configured for DC distributed simulation. 

However, I encountered an issue: if the number of parallel tasks is set to 1, Job Control Center will only simulate tasks sequentially and can only call one remote computer for simulation via DC. 

If the number is set to greater than 1, say N, Job Control Center will start N tasks simultaneously. 

While tasks can be distributed to the computer cluster managed by the Main Controller, the computer running Job Control Center becomes sluggish due to launching N tasks at once. 

Is there a way to make Job Control Center operate like the DC distributed simulation mode in Sweep, where a task is started and automatically pushed to the Main Controller? Thank you all!