NER FOR NLP : Long text marking problem

If the text is too long, you have to go back to the top every time to select a label for marking and then return to marking, which is a waste of time;
It is usually marked while reading. If you can select the text first and then mark, I think it is more comfortable
Whether the marked window can be made into a scrolling window
Whether a label folding function can be developed to prevent too many labels from interfering with labeling