You can rotate interior objects in the Planner 5D editor to place them at the angle you want.
Rotate an item
Open your project in the editor (macOS).
Click the item you want to rotate to select it.
Use the rotation control on/near the selected item and drag it to turn the object until it’s in the desired position.
Release the rotation control to place the item in the desired position.
Tips
If you’re having trouble selecting the item, zoom in and click directly on the object.
For more precise placement, rotate first, then move the object into position.