I think he means that while walking, stop to drink the potion and resume
You can do this with a break condition for a WebWalkEvent. Set the breakcondition for when you want it to drink
Pushed v2.14 - It seems some of you have different dialogues then I have. Thus being it hard for me to test if it works for all of you. Jershwar, when v2.14 is active, please tell me how it goes.
Ask me again for a trial in about 3 days - I'm not at home most of the time untill wednesday; won't be able to fix anything
EDIT: V1.21 has been pushed - fixing the house toggling problem.
Implementation of using the numbers to build will be looked into either later this week or next week - I'll also try to take a look at the butler problem as of then