Hi Paweł, Thank you so much for your valuable information. I'll try to get rid of this bug ASAP and I'll contact you again, and hopefully you're still available to give me some feedback. Once the bug is fixed, I think the new version will be ready for release.
About the point 5, the text box should be enabled, only the button at the right is supposed to be disabled (anyway, you don't need to change this field to reproduce the bug). Best, Ibán.
