Starting from z/OS 2.1, when issuing a scrolling command, a scroll amount of up to 9,999,999 can be entered in the primary input field. 'Scroll' fields on ISPF panels(which is located on the right hand side) continue to be limited to values up to 9999.
Example is given below. Key in "down 9999999" in the "Command" line and hit enter key in the BROWSE/VIEW/EDIT panels. Or You can Key in "9999999" and hit PF8 key. This will scroll the screen to 9999999 lines
Menu Utilities Compilers Help
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BROWSE MY.BIG.FILE Line 0000000000 Col 001 080
Command ===> down 9999999 Scroll ===> CSR
********************************* Top of Data **********************************
line no 1
line no 2
line no 3
line no 4
line no 5
line no 6
Menu Utilities Compilers Help
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BROWSE MY.BIG.FILE Line 0009999999 Col 001 080
Command ===> Scroll ===> CSR
********************************* Top of Data **********************************
line no 9999999
line no 10000000
line no 10000001
line no 10000002
line no 10000003
line no 10000004
ZXSMIN and ZXSMAX are system profile variables containing the minimum and maximum scroll values as defined in the ISPF configuration table. Can be in the range of 0 to 9999999. When the value is entered in the scroll field the user is limited to entering a 4-digit value but when the value is entered in the command field it can be any value between ZXSMIN and ZXSMAX (inclusive).
If "down 9999999" command throws "Invalid scroll amount", then it implies ZXSMAX system profile variable is set to "9999" in the ISPF configuration table.
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