How to create layer of interest in arctoolbox ?

[Autoridad_Nacional_del_AguaANA]

I am creating a tool but I don't know how to create the layer of interest.

Atte: HDRamosMendoza

Email: heber.daniel.ramos.mendoza@gmail.com

Web: https://HDRamosMendoza.github.io/Perfil-Profesional/