How to add a single structure/building or object NOT at an ariport

I would like to know how to add a single structure/building or object NOT at
or near an airport. While there are a few YouTube videos on this, they offer
conflicting advice that in general do not seem to follow to correct folder
structures. As the SDK documents improve with more and more information these
videos though well intentioned are a bit confusing. A step by step tutorial
would help those who just want to add some possibly local missing element to
the FS world.

You can do this in two ways: 1. Set up a project as if you were going to
modify an existing airport. By that I mean copy your existing source folders
and delete the scenery xml etc. and rename the files/folders. Start the sim
and in Dev mode fly to a location near where you want change then go into
Developer Camera. Now load the project. Add a polygon and that’s it from
there. You don’t add an airport but you can add a POI. Be aware that not
adding an airport limits you ability to use sim scenery options such as aprons
and painted lines. 2. In Developer Camera open an existing airport scenery
package you have created and simply add a polygon (or anything) to the
environment. It can be “outside” the airport limit. I have done this to
flatten terrain spikes 50km away. Have even added a POI Lighthouse so I didn’t
need a whole new project. The Lighthouse was simply another folder in the
ModelLib folder. I am assuming you know your way around making and editing
scenery projects with this answer. Hope it helps

Thank you @Ironpot for your answer and yes I have created new airports but
only using the existing MSFS assets. In this case I have created a building in
Blender, (call it a POI) and the SDK says it should be placed in the ‘scenery’
folder, and the folder name should not be changed. I get it to appear quite
happily in the scenery editor but when I build and exit the editor it
disappears. I have copied the Package to the community folder as normal but it
doesn’t work (no building). I think it’s the folder structure that’s wrong.
What folder structure do you use?

Contact me at ironpot@outlook.com.au and I
can send you my layout and some more detailed steps

This should be a relatively straightforward thing to do and doesn’t require an
airport at all. You’ll need a ModelLib asset for the models, and a Scenery
asset for the scenery XML. To find out how this is structured, I would suggest
checking out the “SimpleScenery” example project, and seeing how the
“PackageSources” folder in that project has been set up. You can find
information on this sample project here:
https://docs.flightsimulator.com/html/Samples_And_Tutorials/Samples/SimpleScenery.htm

Thanks Nocturne, you were right. The problem was the folder structure I setup
in Blender. I used a product from flightsim.to, it will
create a blank package folder automatically. I checked how that was structured
and followed it. Now the building shows up and looks fine. I now have to work
out how to get the glass to look like it does in the default buildings.

Email Sent, Thanks very much!