Limited scope representation means that you and your attorney agree that you will do some of the tasks related to your case, and the attorney will do others.
For example, you may agree that you will gather the financial data while the attorney drafts the paperwork to be filed with the court. The attorney may coach you on how to prepare documents yourself or review documents you have drafted. The attorney may coach you on how to appear in court by yourself. They may handle only the most complex parts of your case and give you advice on how to handle the simpler parts. The attorney may prepare the evidence which you will present at court. The attorney can also appear at court for one part of your case (the most difficult or technical) while you represent yourself on other simpler or less critical parts. The attorney then bills you only for the parts of the case the attorney handled.