Last time i asked i got kinda rude response and i probably didnt write clearly what i meant, this was about a year ago.
for valheim+ i requested if that an whitelist box like the banned and admin player lists in server config for vailheim plus could be added.
i’ve found out that if i add the code below in configmanifest, it does what i requested last time.
{
"DisplayName": "Permitted Players",
"Description": "A list of Steam64 IDs for players that are permitted in-game. [Find your Steam64 ID](https://steamidfinder.com/)",
"FieldName": "PermittedPlayers",
"Category": "Server",
"InputType": "list",
"Special": "listfile:./Valheim/896660/Data/permittedlist.txt"
},