I did not begin to create a new topic.
The new version implements the functions of copying and pasting elements (even from different chronicles, but not all, the schemes are not completed).
Drag and drop of elements is also done - now you can drag an element to any place. But the restriction is worth it - you can drag it only within one parent.
Fixes are made for Russian-speaking clients - when you hover, the name of the system string is shown.
For all nested elements, the color of the icons has been changed so that it can be seen immediately.
Made saving in xml format, while all in