Gantter shortcut keys:

-Using the control key to select multiple task at once

-F2 Task Properties

-F8 Opens Project Properties

You can also use the double toolbar to for shortcut icons like printing, cut, copy, paste, undo, redo, add a task line, delete, indent for a parent task, link a task, move a task up and down, zoom in and out of calendar view

In the new release mobile features will be added.