Here is a little utility script for you. Although, in Paintshop Pro, you can rotate all the layers in one operation, you cannot do the same if you want to flip or mirror an image with several layers. So, this script will solve that. Now, you will not have to flip or mirror layer after layer, which can be tedious if you are using a template with 20 layers or more.
There are surely other use for this script, but i think that template makers and template users will find it the most useful.
Best of all, this script is FREE. So just check out my store and grab it!