Go to menu option > Data > group  and Outline > Settings, then toggle
off the "Summary rows below detail" option. That will give you the
summary row  at the top.

Because I use this feature so often, I have the "Group" icon on my
normal toolbar. It makes it a lot easier to collect a bunch of rows
into a group. For my purposes, I usually include an empty row as my
first line and last line -- it make it a lot easier to insert
additional rows later if I so desire. I use this a lot for a "coding
notebook" -- snippets of code for VBA, PHP, or for stock screens, etc.