Or it might be much longer. However, if it is longer, its first few lines will look exactly like the above menu.

The above menu is three lines long, so you can see all of it on the screen at one time. But a menu might list as many as seventeen jobs-far too many to fit in one screen. How can you view such a long menu?

Just press the B key. If additional items are stored in the menu, the screen will move up. If you continue to press m , the menu will scroll up until it reaches the end of the list; then it will show you item “1” again.

To scroll text down down the screen, press the q key (located near the upper right corner of the keyboard).

To understand what’s going on here, imagine that the menu is a long list written on a scroll of paper. This scroll is mounted on rollers in a box. A window in this box allows you to view a portion of the scroll. To view another part of the scroll, turn one of the wooden rollers.

In a similar fashion, your HX-20 allows you to scroll the menu up and down through the screen. It won’t display a long menu all at once, but it will display any four-line portion of the menu. So the screen is a window onto the menu, just as the cutout in that cardboard box is a window onto the scroll. This allows you to read any menu, no matter how long it may be.

Table 4-1 lists the keys you may use to view the menu. (Note: these keys work as shown only when the menu is displayed. When the HX-20 is “in BASIC” or “in the MONITOR,” some of these keys have different functions.)

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