Visual Demo:
Often there are projects involving multiple people. A column with key people & phone numbers for every project is helpful when ecco is used to build a printout and the printout is used to work the project.
However, actually linking multiple contacts to projects has been impossible, and hence this tool.
Also incredibly useful for linking notes about calls or other actions with other items in the file, such as to-dos, followups, document links, etc.
Here is a very basic example of linking phone items to projects. (Any items can be linked to any other, even if they are not phonebook items.)