Currently, a new movement or camera gets the proper name by default, unless you change it.
When you open the Movement Editor, the sequence is named "Movement_X". But as soon as you select which type of transformation, say a Translation, the name becomes "Translation_X". However, if you exit the editor with the saved sequence, the name remains "translation_X", even if you later change it to be a rotation.
The issue I raised is about that and the inclusion of parameters in the name. That's why it's a good habit to give your own name to sequences. Similar to what we should all do with the naming of Groups and Components in Sketchup.
What I can do anyway is to have a consistent numbering, so that the second translation created is named "Translation_2" by default.
Fredo