Maximum number of connections?

If you want to limit the number of connections that can be added in the admin screen you can do this with JavaScript.

We watch the number of row in the table listing all the connects and when it hits a certain value we hide the add button.

If this is what you want I can post an example of how to do it?

Please clariner, can you post the code?
I’m also interested on it.

Thanks

I have added an example to the posts-to-posts wiki.

https://github.com/scribu/wp-posts-to-posts/wiki/Admin-box-display