The selection tool has a number of different uses:

§Left-clicking with the selection tool on a measurement object activates the object.

§Left-clicking on an empty place in the image unselects all objects. In this case the whole image is considered to be active.

§Drawing the selection rectangle with the selection tool selects all objects that fall into this rectangle.

§Double-clicking with the selection tool on a measurement object or the image displays the temperature parameters dialog for the object or the image.

§Double-clicking an object label displays the dialog to change label appearance and contents.

§Right-clicking with the selection tool on an object or the image displays the context menu for the object or the image.

§The selection tool is also used to reposition and reshape measurement objects and to move object labels.

To select several objects hold down SHIFT key and consequently click on the objects you want to select. The active object is always the last clicked one. To select all measurement objects on an image, press CTRL+A.

To select just certain types of objects, use Analysis | Select menu. Here you can choose to select all spots, all lines, all areas, all notes or all objects.