You can specify the size of an object while placing it in the model. This is especially useful when you want to place objects in other objects.
Procedure
Click Symbols in the bar panel if the bar is not activated yet.
Click the relevant object symbol.
Move the mouse pointer to the model window. The frame of the object is displayed. Lines indicate the alignment of the moving object to the placed objects and arrows indicate the distances.
Click the position in the model window where you want to place the object and hold down the mouse button.
Change the size of the object by dragging the mouse pointer. Press Alt to cancel the set grid.
Release the mouse button when the object has reached the required size.