Questions around permissions in service desk and customer portal/help center

[Beakon Support]

Hi Guys!

I'm soon getting our clients to use our knowledge base and I'd have a few questions around this!

1) How do I add a "related articles" box in a blank page article.

2) How to change the permissions so that everyone can anonymously create an issue, and see the customer portal(because at the moment they need to log in), but not see other people's issues.

I tried this with the suggestions found online but it did not work

3) Why are there 2 different customer portals, the customer portal and the help center? what's the difference between them and which one should I provide to our clients?

4)If I do not need the help center, can it be removed?

Thanks

[Beakon Support]

Anyone knows anything?

[Beakon Support]

Also, why is the search field in the customer portal only showing articles when I type exactly a label but not when I type part of the content of an article?