XF 1.5 Enabling Approved Threads In Specific Nodes

I'm just wondering how I can activate thread approvals on specific Nodes? For example, I have a marketplace node and I only want admins to approve threads in this section, all the other threads throughout the forum left with no approval.

So only the marketplace needs threads need to be approved.

Edit: feel free to delete this now figured it out :)
Is there anyway of letting the user know the thread is waiting to be approved? A blue badge shows up on the thread, however doesn't really let the user know the thread is pending review, maybe like a popup or something