Can Mango TV be added as channel? MGTV ? It's missing and some shows are wrongly designated and should be set to that one.

Sure. Should it be added as MGTV or Mango TV?  In the future, please use this thread: https://mydramalist.com/discussions/support/17141-requests-addition-of-new-channelnetwork

Thank you!

My apologies. Was unable to find it :) Mango TV is a more common name.