Hello MasterTenchi!
The Ultrapack was released during the MV era so many settings are legacy from that initial release (And the sample files available back then)
In MZ you need to create your own action sequences with the framework the visustella plugins established for it, but what matters in order to be able to do this are the Motion names, which are visible under the settings file for each release, for example :
Attack A
Attack B
Attack C
Let me know if you have more questions!