Any time I start adding labels in any quantity I rediscover how obnoxious they are to enter and edit because the attribute list order is not fixed. You can be going along and 9 out of 10 times the entry you are using is at the top ... and then it isn't. It means you add an extra step of double checking the attribute name every time you enter one. This is not acceptable if you want the use of labels to expand.
A minor annoyance in comparison is that sometimes one must enter a space for the Bible reference value to appear to select as an attribute value; sometimes one doesn't ... it appears to be trying to determine on it's own if the reference has to be complete or if there is still some legal input, but it isn't doing so accurately.