Happy hour portion trigger and menu item

how do you do happy hour trigger on portion and also how do you trigger on menu item to be available at that time

What have you got setup? The flexibility of samba means you can do everything your own way and makes every setup differently.
Can you explain what you mean with happy hour on portions? That’s quite vaigue, what’s the issue?
Also at what time, have you setup a time frame, are you using triggers to change price list or are you difining an order update on order added based on time?