tree structure, copy, cut, paste

[kdsayang]

Hi,

I have some other suggestion.

1. It will be GREAT if FET can be turn to tree structure. We can show/hide the structure
2. In the tree structure, we can use the copy, cut and paste to edit the subject, activities, etc in the tree structure

example of tree structure can be seen in attachment

Thanks

[Liviu Lalescu]

Difficult. I added in the TODO. Maybe you can work with trees in the xml .fet file.