Adding topic - GREETING or script?

[yojeff]

I can make make a quest, add the Topic GREETING, then use the Add Topics box to add topics to a NPC.

 

How can I add a topic without using GREETING?

 

I know that I can use a quest script, but does it means that I will have to make a clean save everytime I change the topics (content and?or order)?

 

Thanks!