How to sort forum view on date topic created?

[Dave Lowther]

Hi,
I'm new here and couldn't see a better place to post questions about how to use the forums.
I browse once per day and then mark everything as read.
I'd like to be able to see completely new topics rather than topics with new posts.
The view has a column "Last post" showing the date of the most recent post. Is there any way to change it to "First post" so that I could see, from the date/time, whether it's a new topic since the last time I set to 'mark read'?
TIA