Issue with Jmavsim

I am trying to launch the SIH can be run as SITL (Software-In-The-Loop), using
make px4_sitl sihsim_quadx.

I want to know how to decouple these two.

i.e., build using ’ none_iris’ arguments and then use the separate command to launch the SIH mode/SITL mode.

Another question, how to connect the Jmavsim to the PX4 host target, I see it is unable to connect tcp