Your request is not well described. You need to be more precise and explain better, but Atm LMMS cant do anything to Audio, so if your request is aimed at Audio-file editing, you need to use Audacity.
Make sure to search to see if your idea has been posted before! Check our issue tracker as well, just to make sure you are not posting a duplicate: https://github.com/LMMS/lmms/issues
Your request is not well described. You need to be more precise and explain better, but Atm LMMS cant do anything to Audio, so if your request is aimed at Audio-file editing, you need to use Audacity.