Hi @David Smyth ! 

This should be possible with Series, I’ve added an example of how it can be built below:

Your Entry rules will be the audience rules for the banner. then if the user has, for example, clicked the link in the banner, you could send them a Workflow, which can consist of only one path, e.g. “Chat with us” button. 

@David Smyth Similar to @Aleksei O ‘s idea here, you could also launch a page with that click to something about the feature and trigger a chat to launch when someone visits that url as well. 

So you should have a couple options there!