It was a long party, and the end seems a long way off ...
It is my first mods, and I have a bit exaggerated. All together it is a little heavy, I created a complete file, and other three files one for each floor.
You can load it all, or floor by floor.
Loadin map editor, what you want. https://it.gta5-mods.com/scripts/map-editor
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Create maps for this game is a big work and take a lot of time !! So if you like my uploads and want to encourage me, you can donate by the way of paypal by clicking under my nickname