Need to learn more about adding my Poi's to Game files.

[lil_joha]

not wanting to hijack some elses thread.  So Asking my questions sepreatly .   I built a Hotel  carved it down to a 60x60 (made me cry a bit) Understood it just needed to be tagged and placed into the game prefab folder.  Read about somthing to do with a driveway connection ?  this is a commercial building but did not find anything like a driveway in Parts.

Am I missing something?