As I understand it, this generates (by default) 1 milk, after 1 hour of gameplay, by clicking the item "take milk" in the radial menu.

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I was hoping for several tweaks, to make the mod more immersive, random, and realistic.

1) Rename "Producing Milk" to "Milk not ready yet."
2) INI option to hide timer from "producing milk".
3) Rename "Take Milk" to "harvest milk" (or "extract milk").

Those options bring immersiveness into the radial menu. You go up and milk the dragon to get the milk.

4) INI option for max milk. This option is so that the Wyvern can hold more than one milk, and generates additional milk if not milked in a specific time, up to a maximum capacity.

5) INI option to randomize the interval. If the timer is 3600 seconds, and I set the random interval to 60, then milk can be offset in either direction by 60 seconds, aka between 3540 and 3660 seconds. This timer is generated each time a milk is produced or the timer is initiated.

As I see it, this could end up being; (With your default options to leave this unchanged if you add any of these options)

[TamedWyvernMilk]
MilkInterval=3600
MilkRandomInterval=0
MilkQuantity=1
MilkMaxQuantity=1
MilkHideTimer=false