Set up a Page with links back to itself.
1 Link for each attribute you want to add to.
1 Continue to Next Page link.
Set the Attribute Links to subtract a Point from the Point Pool and add a point to the appropriate Attribute as clicked.
Set the Link Restriction on those same links to hide the link when the Point Pool goes below 1.
Set the Link Restriction on the Continue Link to show only when the Point Pool goes below 1.