It’s the same author by a new name, and, conceptually, the same extension. Version 8/140515 of Dynamic Objects by Jesse McGrew works in 9.1/6L02 and, probably, in 8.5/6G60 and 9.2/6L38. It compiles in 9.3/6M62 but doesn’t entirely work.
Per discussion here:
@alwinfy updated it for 10.1; this one is Version 9.0.0 of Dynamic Objects by Tara McGrew. I haven’t used it.
(Tara didn’t want to cause problems with existing code and, so, preferred that the author name of record on the older version didn’t change.)