Four push-button controls, F1 through F4, control the process in the runner window. An additional control called the Curve List is associated with the F5 key. The Curve List includes a text field, often showing a label ACTIVE, and a small pushbutton with a downward-pointing arrow.
The runner window always displays all four controls. The control buttons are each assigned to a function key as well as to the button on the display. An example is the F1-ABORT button, which you can click with the mouse, or by hitting the F1 function key.
Some of the runner window control assignments can change during the experimental sequence. For example, F3 is assigned to Pause while an experiment is running and to Continue while an experiment is paused. Any button with no function assigned to it is unlabeled and grayed out.