I am using the Portal Page and I have put up Islands on both the left side and the right side, is it looks good.

However, when I select the Forum List and then later on reading the topics, the Islands are still shown. Due to this, the space for the actual topic get rather thin.

Is there a way to show different Islands in the Portal Page and in the Forum List?
In this way I would be able to only use one or no side when showing the Forum List (and topics) and I would be able to have a wider page for the topics.

- Yes I do know that you can turn of the different sides through your own preferences, but I would like to be able to set different Islands on these two "pages".