Perming Options
Perming with D2BotMuleLog
For perming the chars with staying 2h in game, you should use the starter script D2BotMuleLog like for muling purpose.
Edit kolbot/libs/systems/mulelogger/LoggerConfig.js with required info and set the value:
IngameTime: rand(7230, 7290),
or
AutoPerm: true, // override InGameTime to perm character
D2BotTimerRefresh
If you need only to refresh the countdown timer for your chars, a better choice can be D2BotTimerRefresh.dbj on github saved as D2BotTimerRefresh.dbj in your ~\d2bs\kolbot\ folder.
This will log on accounts/chars and will keep every char for random 15-25 seconds (line 185) in the lobby, without creating games.
Edit the lines 27-29 with the required info
"account1/password/realm": ["all"],
"account2/password/realm": ["all"],
"account3/password/realm": ["all"]