Hi all, I'm unsure if this is the place for a bug report, but I believe I've found a bug in the K2 designer when creating smart objects.  To reproduce follow these steps:

1. Open K2 Designer
2. Anywhere you want create a new smart object.
3. Fill in Name and click Next to get to Properties screen.
4. Click Add
5. Create a new property then check the "Required" checkbox.
6. Hit the "backspace" key on the keyboard.

It appears the background content gets changed when hitting the backspace key, and you are no longer allowed to hit anything other than "cancel" on the properties window. This isn't that big of a deal if I only have one property, but say in an an extreme case I add 50 properties and then accidentally hit backspace.  This would be very frustrating.