As far as I know, you would need to create the ini file, make a bunch of copies and rename each to match each game in your list
I wish there was a way to group games in a directory, with a ini file per directory
-OR- that you could list the games to apply the ini file to in a master file, or in the ini itself*
*which would kind of be a royal pain since it would have to read each ini file to generate a list, or do it at least once to cache the info