IOverlayHandler handler = currenthandlers.get(recipetype).getOverlayHandler(firstGui, recipe);
boolean shift = NEIClientUtils.shiftKey();
if (handler != null && (renderer == null || shift)) {
mc.displayGuiScreen(firstGui);
handler.overlayRecipe(firstGui, currenthandlers.get(recipetype), recipe, shift);
} else if (renderer != null) {
mc.displayGuiScreen(firstGui);
LayoutManager.overlayRenderer = renderer;
}
}