Really? Jesus, that makes this program frustrating and redundant - back to good ol' Windows Photo Viewer it seems.
What an utterly daft decision/restriction. We use Outlook on our company domain and I am NOT setting up my e-mail twice for the sole reason that Windows share 'charm' has no customisation at all.
I'd that makes you just about as flexible as the app you are criticising ;-)
You sound like a diffident teenager!