Some questions about customs/name embedded titles

I have a couple of questions that might sound silly, but I just want to make sure I understand how things work with the custom builds and name embedded titles.

For me to receive a custom (If I had to build one) I would either purchase the cores and modules or add them to my cart, when purchasing the build option right?
So if I choose certain cores and modules in the build option but don’t actually add them to my cart, does that mean I’m only paying for the build option and not recieve the full custom?

Does the same thing apply to the name embedded major titles?
Do I have to purchase the core or module I want before using it in a customized major title build?

First add all the cores and modules you want to your cart. Once you got that, pay for them.

After you paid for all the cores and modules you want in your custom, pay the 99 bucks for the custom and add them in the dropdown menu when checking out for the custom.

ryder covered the custom building part.

For the name embedded major titles, you do not have to purchase the core/modules. Select the 2 cores/modules you would like. (Solace mask is included)