The Select tool acts like pressing the <Esc> key to cancel another command and enable graphical selection of model objects. To select an object, click on the Select tool, or press <Esc>, or select 'Select' from the right-click menu, then move the mouse cursor to the object to be selected and click the mouse to select. To select multiple objects you can either press and hold the <Ctrl> key while clicking on objects or drag a selection rectangle by pressing the left mouse button and keeping it pressed as you drag a window across the required selection, when you release the mouse button, the objects inside the window will be selected.
Note: When using the selection rectangle it is important to be aware that any openings in the selection rectangle that are hidden by model surfaces will be selected. It is therefore important to carefully check which openings have been selected when using the select command before carrying out a significant operation on the selection set such as deletion.
See also the Selecting, moving, cloning and deleting objects tutorial.