I would like to know how to bulk import call groups, frequently contacted contacts, and recipient lists in the BaoFeng DM32. I only found information online stating that this feature exists, but without specific instructions. Today, I asked a BaoFeng engineer directly, but he also said that he doesn't have any detailed tutorials for this. I hope someone who has used the DM32 can help clarify. Ideally, there would be step-by-step instructions, and if possible, a video link.