the first option is, to manually rebuild your current Application as an Simplifier Application, that means to create every screen and action by yourself. This will make the management and maintenance easier afterwards.
the second option, that we do not recommend, is to create a Simplifier Application and then copy your code into the file of the “code” section. After copying your code into the “code” section you should just need to save the scripts. If you deploy the Application your pasted code will be overwritten by the configured simplifier app which is empty in your case.
It is uncertain to say that copying your UI5 application project structure to the “code” section of Simplifier will work
