Deleting channels on a venton unibox (vix4e2project)

[spudorange]

Morning all.

I am trying to use the above box as a free to air receiver and my brain is struggling.

I can not for the life of me find a way of editing unwanted channels, nor can I find a way of adding favourites.

Can anyone help, I appreciate it is an old box though.

EDIT:
Managed to sort it manually but took over an hour to do

menu, 8, then keep pressing 8 (to delete) otherwise it reverts back to menu, 8 each time.
Hope that makes sense in case anyone else ever needs to do it