A number of users have requested the ability to configure a greater number of posts page to suit their tastes.
I have found the following extension request which was for a 3.1.x board: viewtopic.php?f=496&t=2432726
This brought my attention to 2 working extensions in the extensions database for 3.1.x but neither seems to support 3.2.x:
Is anyone aware of either extension being made to work on 3.2.x or of another extension that will do the job?
There is nothing in the support boards for those extensions suggesting they will work or that the authors are in any rush to get it working. If not, then it would be a great addition.