The EKOS Scheduler is not designed for multiple parallel scopes and cameras. But another user reported success with two strategies.
First Strategy. One INDI server with all his equipment that included the second camera and focuser and an instance of CCDciel to orchestrate a capture sequence and autofocus.
Second strategy: A virtual machine running KStars and EKOS. Selecting NO when asked if you wish to stop the current instance of INDI.
They reported the second strategy downloaded images more quickly.

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