How to add any smart contract to the contracts directory?

[omniNerd]

I love the program, the entire development experience is so smooth and amazing. I've deployed contracts successfully using this repository. I was wondering if there was a way to add other contracts' solidity files to this program. For example, I copied and pasted the smart contract file from the CloneX Vial source code and placed it in the YourNftToken.sol file. When I went to deploy, it says artifacts for the new contract not found. Any help would be greatly appreciated!