How Can I Make An Admin Site?

I’m using Gii to get my cruds but I would love to have every admin model on one place like /admin/, how can I do that?, thanks.

create admin module using gii and then generate your models under the admin module’s model folder that’s all! but if you are using the same model elsewhere outside the admin module consider generating the model under default one( so that it can be used on both side without importing the admin module’s model folder if you are using outside the module)…