Custom SimObject
You can add any SimObject that you have installed to the world. You can give the SimObject a constant speed. Routes are not supported yet.
Other players may not have the same SimObjects installed as you. If you share the mission, the custom SimObjects may not show up for them.
Attributes
| Attribute | Description |
|---|---|
| Active On Start | Enabled: the SimObject will be visible as soon as the missions starts Disabled: you need to activate the SimObject during the mission |
| SimObject Title | Title of the Sim Object. See How to find the SimObject title |
| Is Aircraft | Is the SimObject an aircraft? |
| Orientation | Heading of the SimObject in true degrees north (not equal to magnetic north) |
| Altitude | Altitude above sea level in feet |
| On Ground | Ignore the altitude and spawn on ground |
| Speed | Speed of the SimObject in knots |
| Simobject Spawn Radius | Radius (meters) in which the SimObject is randomly spawned. (0 = exact location) |
Actions
| Action | Description |
|---|---|
| Activate | Spawn the SimObject in the world |
| Deactivate | Remove the SimObject |
Events
Custom SimObject doesn't have any events.
How to find the SimObject title
MSFS2024
1. Enable Devmode
Under General settings, in the tab Advanced Options, enable Developer Mode.

2. Open the SimObject Spawner tool

You can search through all SimObjects, and filter per package.

3. Copy the SimObject Title without brackets
The selection dropdown gives you the SimObject title you need to enter in the Mission Hub. You should not add the part inside the brackets, as that is the livery name and not part of the SimObject title.
You need to type the title exactly, without the part between brackets, to have it successfully spawn in your mission.
MSFS2020
1. Enable Devmode

2. Create a new project

It doesn't matter what you fill in here. Click create new project.

On the next screen, click Cancel

3. Open the scenery editor

4. Use the Objects panel
In the scenery editor, click the View dropdown, and enable the Objects panel.

Now the Objects panel should be visible. In the Object type dropdown, select SimObject.

On the right side of the panel, you see the Packages.
You can select ALL, to see all installed SimObjects, or select the package that contains the SimObject you want to use.
On the left side of the panel, you see a list of all SimObject titles.

5. Copy the SimObject Title
From the left side of the Objects panel, choose the SimObject you want to use. You need to type that title exactly in the Mission Hub in order to have it successfully spawn in your mission.
DOCUMENTATION