Hotkeys to jump to the first (top) task?

GanttProject Desktop Support
#1

Are there shortcut keys to jump to the first (top) task of the project, to the bottom (last task of the project?

#2

Try Home and End

#3

Not if using a laptop. Those single keys do not exist on, for example, a MacBookPro (where my own GanttProject work is primarily happening). It has to be a combination of key depressions.

#4