To load sys.ini or os2sys.ini
press the left or right button
and the 1st window will fill.
Press exit
If you want to leave
this program.S
Select this item
and this 
before you can delete it.
Press this
and this
to see values for data.{
Press here
to see this
with its value.3
to see this also
with its value
to see another one
values are usually different.
To add data
simply press add
and a dialog will appear.U
To delete an item
select also in this window
if you want to delete anything.
To load another file
press the middle button
and select from the dialog
and create a new file
input your new name in the file dialog.