Just a suggestion. I would actually remove the CLEAR option from the menu, because that makes is easy to accidentally hit (which I have done). Maybe hide it in a pull-down menu, or leave it where it is, and have it confirm Y/N before it actually clears the connections.

I know it's just a free app, and you probably aren't doing too any devel with it anymore, but I think that would make an already near-perfect app, perfect.

I also like jp1, especially on larger projects, or time-consuming
perfectionist sessions, the more connections,
the more its easy one-click operations is of benefit. The gui color
also is a nice very change from the ordinary.
Like a perfect cup of coffee
Cheers