Hi Steve,
What I know of there isn't a function to have "sub-topics" in London. No idea yet what Madrid has to come within that area.
As it is now, the VA is global, meaning you can have different icons, names etc. depending on which portal etc. you are using it.
When it comes to topics, what you can do is to limit which one people are seeing, so depending on the logged in user, they might see different topics depending on their roles, departments etc.
As I understand, you would like to first perhaps as for which department the user are looking for and then give a specific list of topics. I took a quick look and can't really see any good way of doing to limit. I would like to be able to limit a topic to e.g. a specific Service Portal, but can't see it right now how to do that.
Only way atm. I can see to make what you are looking for is to have just one topic per department and in that have a really complex topic with multiple choices etc. But I don't see that working (administrative) in real life. Feel like you would quickly build yourself into a to complex flow to understand.
//Göran
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