The number of records visible on the page is controlled by the repeat region. There should be no limitations on making changes to the repeat region, what was the error you got when you tried this?
If you need to make this adjustment manually you can do so in the code, there will be a single line of code that looks like this:
$maxRows_WADAProducts = 5;
It will use the name of your recordset, so make sure to look for yours. If you do a search for $maxRows you should be able to find this.
You are free to alter the results display any way that you want. If you add in a new column in the display table you can add in a new heading, then using the bindings tab you can drag a column onto the page where you would like to see the value. You can also delete any of the display that you do not want. Please post back with any questions that you have about any part of this.