This has been discussed before for no realistic answer that I can remember, I am retired and time rich but still want a brief afk option available.
My best solution would be to allow scripts to be used when online with some sort of continue function.
Picture the scenarios of a mass move leading to a kingdom v kingdom battle or even a merchant caravan with multiple merchants and PC guards. If there is not "continue to follow" command or similar and the move has to stop every time a player needs to answer a family occurance, answer a door, take a quick bio break or god forbid a plain honest DC nobody will ever get anywhere.
I understand the reluctance for skill gain while OPC or running a script leaves the game open to become Bots Online but the transition between PC, afk and OPC needs to be seemless and instant, which why I think allowance of "limited" scripting while online is needed. Other games follow command or craft multiple command are examples of this sort of script.