Yes: F12 hot key focuses the context box, Enter posts back through a hidden link button, and a watermark script simulates placeholder text in the context textbox.
Yes: registers a client-side one-click guard script (mnuOneClickOnly) and, per icon, an AJAX activity indicator/form-disable behavior via SAIFImageButton.
SAIFImageButton
ImageButton (INamingContainer)
Input
DisableFormControlsOnClick, EnableIndicator
Yes: when EnableIndicator is true, registers /Resources/Scripts/Controls/ImageButton.js and publishes a DisableFormControls attribute to disable the form while an AJAX action is in flight.
Note: Statements marked with * were inferred from code structure, naming conventions, or contextual evidence where direct confirmation was not available in source artifacts. Statements marked with ** could not be confirmed; treat as unknown until verified.