On name changed
I This condition is triggered when you have successfully changed your name.
The new name is readable from the Self > Name expression from the start of this event.
The previous name is readable from the Self > Previous name (for on name changed) expression from the start of this event.
There is no way to get the name before the previous one.
So if you change your client name from "a" to "b" to "c", during the last Name Changed event, the previous name expression will show "b", and the current name expression will show "c", with no way to see "a".