HotKeys

Note that most keys won't work if the focus is on an input fields. This is a feature in the used shortcut.js to allow typing in input boxes. But clicking any button or checkbox also blocks shortcuts, so please click somewhere on the page if keys don't work.

Key	Function
0	Toogle page image 100% zoom and current zoom
+	Zoom +10%
-	Shrink -10 %
1	Show page image and word boxes (no OCR)
2	Show OCR text (page image shaded)
3	Show OCR text only
4	Show page image only (no word boxes)
Del	Delete selected nodes or words
F2	Edit selected word
Ctrl + Z	Undo
Ctrl + R	Redo - but careful! Page reload will be triggered if a form field is active.
Ctrl + A	Select all (helps to notice if some text is missing from the OCR layer)
Ctrl + Left arrow	Next page
Ctrl + Right arrow	Previous page
Cursor arrows	When image area is active, moves selected word.

When tree is focused, cursor keys can be used to navigate on the tree, Left/Right to open or close nodes, press enter to select current node. Remember that features like Del or F2 will work on the selected node, not where the "tree cursor" is!