@sharonyue to remove the panel you have to edit the template.
I do not know exactly where it is but it should something with topic template.
It is asking for
URL to git repository
I guess it will fetch and install themselves.
I hope that helps!
And BTW, have you used OpenShift before? Could you give some feedback on it?
update : It didn't fetch NodeBB to the cloud. May be someone can write how to do it as OpenShift seems to be a good platfom to try NodeBB.
There was someone around here who successfully managed to install on OpenShift about a week or two ago, I'm waiting patiently for the guide as well