Topics by Tag

I have a help project in which I want to add a Related Links section at the bottom of each topic. My questions: How do I setup a Related Links section to display topics associated by keywords? Is it possible to apply these links to multiple topics? Thanks!

Is it possible to set Keywords and Description meta tags for individual topics? Can you provide instructions for this task?

I've been using the HelpSmith help authoring tool to create help files and manuals for about a year. I use Keywords to create the Index section of my help file, but wondering what is the difference between Keywords and A-Keywords? Can you please provide an example of using A-Keywords?