until a change is made though - You can save and reload - when you reload the nodes are all repopulated from scratch, if I recall correctly.
Just keep in mind that reloading should be kept to a day to day basis - If you randomly save mid-day and reload - your exhaustion time also resets., meaning you won't get tired at the same point of time as normal - which could impact operating hours of the shop - forcing you to be awake when no customer come, and be asleep at customer prime-time