If you only want the result from the selected subsystem, you can use the 'Switch' block, with 'input' connected to the 'condition' port of the 'Switch' and the outputs from the two subsystems connected to the other ports. But in such a setup, both subsystems will execute and produce outputs, from which the 'Switch' will select the output from the desired subsystem based on the 'input' value.
On the other hand, if you want only the desired subsystem to 'execute', creating a setup using 'Variant subsystem' with 'input' as the variant control would be the way to go.
Thanks!
