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- <Chapter 10: Keys with Special Functions>
- This chapter describes the single keystroke commands: the function
- keys, the numerical key pad keys, and certain control keys used when
- editing text strings.
-
- <Section 10.1: Function Keys>
-
- <Section 10.1.1: F1: Help>
- Pressing F1 at any time activates the HELP system, which gives you
- on-line access to the entire text of the ORCHIS manual. The portion of the
- manual which appears is indexed to the current menu and the current
- operation. The HELP system is fully described in Chapter <[11]>.
-
- <Section 10.1.2: F2: Complete screen redisplay>
- If you press F2 at any time, the entire ORCHIS screen display will be
- erased and redrawn.
-
- <Section 10.1.3: F3: Total Mode Toggle>
- This command is available when you are displaying a chart. It toggles
- between two modes governing the display in the chart window: TOTAL (the
- chart image is stretched or shrunk to exactly fill the window) and PARTIAL
- (a portion of the chart is displayed according to position and stretch
- information associated with the window). F3 has no effect if you are
- displaying a form.
-
- <Section 10.1.4: F4: Center Window at Cursor>
- This command is available when you are displaying a chart. It first
- toggles out of TOTAL display if necessary, and then moves the view in the
- chart window so that the new center of the window is the point that was
- occupied by the cursor at the moment the F4 command was invoked.
-
- F3 and F4 can be used in combination to navigate rapidly about the
- chart. First press F3 to toggle into TOTAL display. Point with the cursor
- at the box in the chart you want to examine, and then press F4. ORCHIS
- will toggle out of TOTAL mode, and display the selected box at the center
- of the chart window.
-
- F4 has no effect if you are displaying a form.
-
- <Section 10.1.5: F10: Super-Escape>
- Use the super-escape key, F10, to return in a single step from the
- current menu to the ORCHIS top menu. This command is equivalent to
- pressing the escape key again and again until you reach the top level
- menu.
-
- <Section 10.2: NumPad Key Commands>
- The keys of the numerical key pad are used to move the cursor, to
- shift the view when a chart is displayed, and to move to neighboring boxes
- when forms are displayed. These keys have different functions when in the
- HELP system. See Chapter <[11]> for more information.
-
- <Section 10.2.1: Cursor Motion Keys>
- Pressing an arrow key in the numerical keypad moves the cursor a
- single step in the direction of the arrow. See <[FIG09]>.
-
- <Section 10.2.2: Shift Arrow Keys>
- In chart view, holding down a shift key while pressing an arrow key
- moves the chart display view by one half of the window size in the
- direction of the arrow. Thus pressing shift-right moves the chart window
- to the right (picture elements appear to move to the left inside the
- window).
-
- In form view, the shift-arrow keys move from the current box to one
- of its neighbors. Shift-up moves to the parent box of the current box.
- Shift-left and shift-right move to its sisters. Shift-down moves to the
- first daughter of the current box.
-
- <Section 10.2.3: Shift Corner Keys>
- In chart view, holding down a shift key while pressing the Home key
- causes the chart display window to be re-positioned at the extreme upper
- left corner of the chart. Similarly, shift-PgUp moves the chart window to
- the upper right corner of the chart. Shift-PgDn and Shift-End move to the
- lower right and lower left corners respectively. See <[FIG12]>. These keys
- have no effect in form view.
-
- <Section 10.2.4: Grey Plus Key>
- This key enables and disables automatic cursor motion. Press the
- Grey-plus key followed by a cursor motion arrow key to start the cursor
- moving at a constant rate in the direction indicated by the arrow. Press
- the same cursor motion key again to accelerate the motion. Press a
- different cursor motion key to change the direction. Press the Grey-plus
- key again to stop the motion.
-
- <Section 10.3: Text Editing Control Keys>
- When you are editing a text string, a number of control key commands
- become available, and the command menu is replaced by a list of these. The
- new commands are:
-
- Ctrl-F: move text cursor forward 1 character
- Ctrl-B: move text cursor back 1 character
- Ctrl-A: move text cursor to start of line
- Ctrl-E: move text cursor to end of line
- Ctrl-K: delete from cursor to end of line