How do I add the sidebar options on my forum like the ones below

On your board:

1 - Click in BLOCK MANAGER:

2 - You'll see the blocks according to the apps/plugins you have installed:

3 - Choose one and drag and drop to the main area.

Thank you! Some of them say: 

This block cannot be shown. This could be because it needs configuring, is unable to show on this page, or will show after reloading this page.

Not sure what to do about this. Any idea?

Announcemen

Some of them have settings that you can configure clicking on Edit after dragging the widget.

They should show up after saving and refreshing the page is there's anything they can show depending on how you configured them.