Help: TechniBraille

Combinations of dots 1-8: Keyboard input.
Key below dot 7: Escape key.
Key below dot 8: Tab key.
Left Thumb: Backspace key.
Right Thumb: Space bar.
Both Thumbs: Enter key.

The two keys at the left rear (2 columns, 1 row):
ESC [1,1]: Enter/leave learn mode.
M [2,1]: Enter/leave preferences menu.

The four keys at the left middle (cross):
Top/Bottom: Go up/down one line.
Left/Right: Go left/right one window.

The six keys at the left front (2 columns, 3 row):
Ins [1,1]: Go to cursor (or undo cursor tracking motion).
E [2,1]: Go to top line.
Supp [1,2]: Toggle cursor tracking.
L [2,2]: Go to bottom line.
X1 [1,3]: Go left one character.
X2 [2,3]: Go right one character.

The one key at the right rear (1 column, 1 row):
X3 [1,1]: Enter/leave status display.

The two keys at the right rear (1 column, 2 rows):
X4 [1,1]: Go up to line with different content.
X5 [1,2]: Go down to line with different content.

The four keys at the right rear (1 column, 4 rows):
/ [1,1}: Toggle frozen screen.
* [1,2}: Toggle attributes display.
- [1,3}: Toggle highlight underline.
+ [1,4}: Toggle cursor visibility.

The twelve keys of the numeric pad (3 columns, 4 rows):
7 [1,1]: Home key.
8 [2,1]: CursorUp key.
9 [3,1]: PageUp key.
4 [1,2]: CursorLeft key.
5 [2,2]: Route cursor to current line.
6 [3,2]: CursorRight key.
1 [1,3]: End key.
2 [2,3]: CursorDown key.
3 [3,3]: PageDown key.
VerrN3m [1,4]: Toggle six-dot braille.
0 [2,4]: Insert key.
. [3,4]: Delete key.