Build Structure problem

Hello, dear Veld.
i have some questions to ask you. how can i build a graphene with different chiraliyies and how can i build a NITI alloy. i can use other software to build some materials, and how can i use the software combation with the EMC as you say in the Getting comfortable with EMC scripting( Getting comfortable with EMC scripting). Becasue the website diecription is a little simple. can you give some detailed desscription.
i’m looking forward your reply,
Thanks.