Creating a pop out window with an eq or something on it

[pcs800]

I am not sure the title is completely accurate as to what I would like to do, but here's a better explanation.
I have an amp sim I created, and would like to add a parametric eq to it, but the interface has no room for it.
How do I create a window that shows up when the user clicks a button?
Is there a snippet or code example that shows this?

[d.healey]

@pcs800 Add a panel and a button. When the button's value is 1 show the panel, when the value is 0 hide the panel. The button's callback will look something like this

inline function onButtonControl(component, value)
{
    myPanel.showControl(value);
}