The dialog Sets Up the Toolbar for IRender nXt .
This lets you define which icons you want appear on your toolbar.
This is available from the IRender More Tab or from the Plugins/IRender menu.
Check the icons which you want to appear on your toolbar in SketchUp.
Using commands removed form toolbar
The commands you remove from the toolbar will still be available from the Plugins/IRender drop-down menu in SketchUp.