Can different simulations be handled by the same server in GZWeb?

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Greetings,

I am fairly new to ROS and Gazebo and I am developing along with my team a web-based robotic simulation platform through which users can access and use the Gazebo/GZWeb simulator. One question that came up during our discussions was that if our system creates one instance of the simulator per user, it will have to deal with multiple instances running in parallel and competing for resources, which will cause a certain overhead to the hardware supporting the application and consequently a drop in performance. Then, I would like to know: is it possible to have multiple scenes from different clients handled by the same server? Is there another way of avoiding such hardware overhead?

Gratefully,

Lucas