I want to copy the text within a bookmark range and duplicate the text an unknown number of times. Is this possible?
Yes, you can extract the text contained in a bookmark and insert it anywhere in the document any number of times. But this would be just a text without formatting. Copying the content of the bookmark with formatting is a very complex task as the bookmark can span acrooss the document node tree. The code required for it will be complicated. However if the problem will be narrowed down, for example if the bookmark will always start in the beginning of paragraph or table and end in the end of pargaraph or table, then the task will be much easier and can be coded fast enough.
Do you have or is there an example?
What kind of example do you need? Please provide some description of your task. Attaching sample templates will be helpful too.