We have:
lnbSetPicture → lnbPicture
lnbSetPictureRight → nothing
Suggestion:
control lnbPictureRight [row, column]
Exists in code, for control and IDC lnbPictureRight
Can be closed. Command was not documented on the biki.
closing - https://community.bistudio.com/wiki/lnbPictureRight