Similar to PMS2 buttons can be pressed via keyboard. For this purpose there is a configurable letter key (set \< in the label before the character). The letter gets an underscore on the button. It works with the letter key alone if the cursor is outside an input field. Alternatively any combination with the alt-key (or alt-ctrl) can be used everywhere. For buttons without a label the letter can be configured via the header e.g. #r for key ‚r‘.
A button which has got the focus are marked with a white dotted hairline and can be pressed with the enter-key. The hairline also appears on click to give instant feedback on the click.
Message boxes support the configuration of the button which is active initially. It can be pressed with just the enter-key. The shortcut is always the first letter of the button caption.