Well yeah how can make dialog topics and if you clock dialog topic then they starts speaking like this:
Character one:''Blah.''
Character two: ''Blah blah''
Etc...
1. Care to rephrase that? I don't understand. Clock??? Huh?
2. You've read the manual, yes?
3. I'll have a stab at what you're asking. Are you asking why the topics don't work for you, and the characters talk through all the topics in a dialog? When they are done talking for that topic, use the "return" command.
Man: "Blah."
return
I'm pretty sure he wanted to write "click" instead of "clock", as that would at least make sense and the "o" is very close to the "i" and you could accidently type "o" instead of "i" when you're in a hurry. If I'm right with that, you're asking for a general tutorial how to make dialogs and should read the manual (Contents -> Tutorial -> Setting up the game -> Conversations).