Directory / plugin
Custom Post Relationships (CPR)
v1.01 · by Gerasimos Tsiamalos
This plugin will let you create custom post relationships.
About this plugin
Most of the “related posts” plugins out there while they provide some kind of control on how to create related posts, they all rely on an algorithm
and the results are automatic. With CPR you get total control as you can manually select the posts that you want to relate.