You can specify a preset when using one of the available shortcodes.
To do so, use the parameter preset_id.
E.g. [[mkl_configurator product_id=180 preset_id=230]]
or [[mkl_configurator_button product_id=180 preset_id=230]Open the preset [/mkl_configurator_button]]
If you use one mkl_configurator on your page and also add the button shortcodes, the buttons will load the preset in the existing configurator window.