Scroll Functions and Scroll Keys for Vertical Scrolling 
Vertical scrolling is necessary when all the available information of table structures do not fit in a window.
First/Last Page
The
First Page, Last Page function displays the first screen page and the last page of a table structure.While the First page function always goes to the beginning of the table structure, the Last page function gets the user to:

123 --LS--> 7

123 --LS--> 567
Previous/Next Page
Previous Page scrolls one page back in a table structure, Next Page one page forwards. No overlapping occurs.Exception: In the editor display and in text processing the display contains one overlapping line.

456 --VS--> 123 --NS--> 456 --NS--> 7
Remaining on the Last Page
If the user is on the last page and chooses Next page, the display remains on the last page.

456 --NS--> 7 --NS--> 7 123 --LS--> 7 --NS--> 7
Consistent Scrolling
If, in a table structure with a key, the user displays a page somewhere "between" actual pages and then chooses
Previous Page and/or Next Page, the system displays the previous and/or next screen page relative to the current page display
123 Display as of 3: 345 --NS-> 67
Please note in the following example that the first Previous page consistently scrolls relative to the previous page display, the second Previous page, however, stops at the beginning of the table structure, because it is not possible to scroll back three complete screen pages.

123 --LS--> 567 --VS--> 234 --VS--> 123
Vertical Cyclical -Scrolling
Cyclical vertical scrolling is not allowed, because it would confuse the user.
Scroll Keys
Using the keyboard, the user scrolls by using the function keys
F21-F24 , not the ENTER key. The scroll functions are assigned to the following function keys:· |
First page |
F21, CTRL-PGUP (on workstations) |
· |
Previous page |
F22, PGUP (on workstations) |
· |
Next page |
F23, PGDN (on workstations) |
· |
Last page |
F24, CTRL-PGDN (on workstations) |
Scroll Arrows
In addition to the function keys
F21-F24 , there are four scroll arrows in the standard toolbar which the user can activate with the mouseThe scroll arrows are removed from the
Standard Toolbar as soon as correct performance of the Scroll Bars (Control Element) is guaranteed.