The Solo Bop was was done a few different ways, Brenda on the right shows the inplace version and the clip on the left
shows the group version. There is also Bop Clubs (Beach Bop Swing) in the Southern & Midwest states such as Florida, Virginia, Atlanta, Chicago, etc. that call themselves Bop dancers plus doing other forms of swing dance as well. However I don't have much historical info. on them at the moment. Rock-a-Billy also has its own "Boppin' " as well.
A few clips can be seen in the television infomercial advertisement for 1950's music that shows clips of swing dancing of the 1950's, it has a few clips of the Bop being done. Today, younger West Coast Swing dancers call this generic Bop movement "Funky Swing," adding it into the West Coast Swing at any given time when they dance to modern Funk/ Disco/ Techno/ Rap or Motown type swing danceable music, however it is rare.