Properties: Geometry inspector
Here's an inspector that deals with objects' position and orientation.
The X and Y fields contain the selected objects' horizontal and vertical coordinates; the value represents the distance between the canvas's origin and the upper-left corner of the object (which might not be obvious if the object is rotated or flipped). If you have multiple objects selected, the symbol -- appears in the fields that have different values. You can enter a new X or Y value for the selected objects to move them on the canvas.
The Width and Height fields contain the selected objects' horizontal and vertical size. If you have multiple objects selected, the symbol -- appears in the fields that have different values. You can enter a new width or height value for the selected objects to resize them on the canvas. If the Maintain aspect ratio checkbox is selected, when you change the height or width, the other value changes automatically to keep its relative size.
To rotate the object, enter a degree value in the rotation field, or drag the circular control.
Click the flip buttons to reverse the object vertically or horizontally.
Below the separator are controls for dealing with line labels; they become active when you select a line label. Drag the Label Location slider to move the label along the length of the line. Drag the Label Offset slider to move the label perpendicular to the line. Use the pop-up menu to select the label's rotation: Parallel and Perpendicular set the rotation relative to the line, and the rest set the rotation independently.