The ODE simulation and SSA simulation provide sliders that can be used to experiment with values and see the change in the simulation results instantly.
How it works:
The Core library provides a new class called MultithreadedSliderWidget, which combines a slider widget with the CThread class to provide a widget that would call functions inside a C library on a separate thread as the slider changes value.
The thread is destroyed when the slider window is closed.
The DynamicCodeTool plugin provides a C function called compileBuildLoadSliders, which is almost the same as compileBuildLoad, except for the fact that it attaches a MulthithreadedSliderWidget to the CThread that would be normally created with the compileBuildLoad call.