Keyboard operation in online mode

Some standard keyboard shortcuts are supported by every device for the keyboard operation of a visualization in online mode.

Standard keyboard shortcuts:

Key(s)	Action
[ Tab ]	The next element is selected according to the chronological order of insertion; within a table, each individual cell will be selected; if a frame element is selected, the selection will be then passed on to the individual elements that it contains.
[ Shift + Tab ]	The previous element is selected ; reverse order to [Tab]
[ Enter ]	Input action is performed on the selected element
[ Arrow keys ]	Next element is selected in the direction specified by the arrow key

	For the integrated visualization, the keyboard operation can be activated and deactivated explicitly using the command "Activate keyboard operation". This may be desirable, because other commands given by keyboard shortcuts are not executed as long as the keyboard operation for the visualization is activated.

	There is an option to handle keyboard events in the application code.