## Creating a System

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### Interaction with the Game Window

- You should turn on the Grid checkbox before creating your system.

- All object placement is done in the Game Window, which shows yours system as it will actually appear.

- The interface for the editor is as close as possible to the interface for the game itself, so you should familiarize yourself with the game controls first.

- You can go to the Game Window at any time by clicking the Windows cursor in it. To get out of the Game Window, you can press the <Spacebar> if you are paused and reset, otherwise you'll need to press <Esc> (since the spacebar is used in the game to advance tutorials, etc.).

### Adding Objects

- To add an object from the Object Database, select it then click "Add>>", or double click it.

- Celestial Spheres and Suns will automatically be added to the scene, centered.

- Other objects will take you into Add Mode, where you can place the object interactively.

### Add Mode

- Position the object on the plane where you want it, then hold down the left button to move it up and down.

- The object will be restricted to the playfield height above and below the solar plane. To remove this restriction, hold down the <Ctrl> key.

- Release the left button to place the object.

- Hold down the <Shift> key as you release the left button to continue adding more of the same type.

- While adding, you can still manipulate the camera with the right mouse button.

### Deleting Objects

- Select the object from the Scene Tree and press the Delete button or the <Delete> key.

### Manipulating Objects in the Scene

- To manipulate an object, double click it in the Scene Tree to bring up it's Manipulation dialog. Holding down shift will zoom to the object instead of bringing up the dialog.

- You must be reset to bring up an object's Manipulation dialog. Otherwise double clicking will just zoom to the object, if it still exists.

### Viewing

- Clicking the View button will zoom to this object.

### Moving

- Clicking the Move button will take you to Move Mode, which functions the same way as Add Mode.

- Left click and optionally hold down to set the objects height.

### Rotating

- Clicking the Rotate button will take you to Rotate Mode.

- Move the mouse left and right to rotate the object about the vertical axis.

- Hold down <Shift> or <Ctrl> to rotate about the other axes.

- Press the left button to accept the changes.

- Press <Esc> or <Spacebar> to abort the changes.

- Click the Reset Orient button to reset the orientation to the default.

### Linking

- Click the Link button, then select the object you wish to link to with the left button.

- Press <Esc> or <Spacebar> to abort.

- Click Clear Link or Move to break the link.

### Orbits and Eccentricity

- Click Set Orbit and select an object with the left button to establish the body that this object will orbit around. That object must be massive or a degenerate orbit will be produced.

- Click Set Eccentricity and move the mouse up/down and left/right to change the orbit eccentricity. Left click to accept, press <Esc> or <Spacebar> to abort.

- To reset the orbit to a circular orbit, click Set Orbit and choose the orbit target again.

### Spin

- Click Set Spin to set the spin rate of the object.

- The controls are the same as for Rotate. Rotate the object as far as you want it to spin in 1 second and click the left button.

### Scaling

- Click Scale and move the mouse left/right to change the scale. Left click to accept, <Esc> or <Spacebar> to abort.

- Click Reset Scale to reset scale to 100%.

- The indicator shows the current scale of the object.