The main part to understand is that there are two steps. That means TWO PURCHASES.
Step 1: Purchasing the modules.
This step is separated because once you’ve licensed (‘purchased’) a module, you can use again and again in unlimited future customs. So, when buying a custom, first you need to design it. Then identify any modules in the planned custom that you have not yet licensed.
If this is your first custom then all of the modules will be ‘not previously licensed’. So paying for those will be your first step.
Step 2: Purchasing the custom build
Once you ‘own’ the modules, you then go to step 2. You input your order for a custom that contains those modules.
You input the modules that you want. You choose Build Strength: Standard, Terminus (additional cost), or Terminus2(additional cost). You choose sound masking: Standard or Solace (additional cost). You choose delivery speed: Standard or Expedited/Express (additional cost).
Once Step 2 is done, you go to bed and wait happily for your custom to arrive.

That’s a general overview of the steps. The more detailed version is right there on the site. Any other specific questions, you can shoot them here or to tech support.
