Child them not an option tho I moved file

Before I make any changes, I trust the advice that I should only mess with child themes. I used FileZilla to moved bp-scholar-child folder from the themes subdirectory of bp-scholar to WP-content-themes-bp-scholar-child. I thought this would make it show as a separate template under Appearance Themes but that doesn't happen. What else do I need to do and where does it tell me that I missed?