You can move your translate, rotate and scale your part/model in 2 ways, either via the Move tool or via the position settings for the selected of the model/part below the Scene Tree in the Scene tab of the Project panel.
The move tool can be triggered in different ways:
Right-click a selected part/model in the Scene Tree and choose Move.
Right-click a part in the Real-Time View and choose Move Selection, Move Part or Move Model, depending on what you want to move.
Click the Move button in the Tools section of the Ribbon or in the Scene tab of the Project Panel. If no part(s) are selected, this will trigger a dialog, where you can choose which part(s) you want to move.
Use the hotkey Ctrl+D on Windows and Cmd+D on Mac. If no part(s) are selected, this will trigger a dialog, where you can choose which part(s) you want to move
Translation XYZ Determines the center position of the selected part or group.
Rotation XYZ Sets the object's rotation on each of the axes. This uses the local coordinates.
Scale XYZ Enables you to scale the object on each or all of the axes. This factor is relative to the current uniform scale factor.
Scale slider Uniform scaling of the object. The factor is relative to the size the object had when it was imported into the scene.
Snap to Ground The Snap to Ground quickly moves the model in the Y-direction (up-down), to snap the lowest point on the models bounding box to the ground plane. This is useful when the model has been moved and is no longer touching the ground plane.
Center Center will reposition your object so it is centered on the X and Z axes, but will not affect the Y position.
Reset Reset will undo all transformations on the element and reset to the original values the item had in the imported model. Notice that the positioning can be applied on both part and group level. Resetting will only apply to the currently selected level.
Copy/Paste position This enables you to copy the position, rotation and scale from one object to another.
When Importing a model into your scene the position is set on the group (model) level. This will be positioned in the center of the scene. If you want the position the model was created in, relative to 0, just select the model and hit Reset.