Having trouble organizing my sub decks

I’m using Anki on my MacBook Pro. In my deck “Warrior Trading Starter Course” I want all my chapters to be in numerical order. But Chapters 12, 13, and 14 are above Chapter 1!!! There’s not supposed to be a chapter 10 and 11 in here by the way - that was intentional. So how do I get them in order???

I also wanted the deck “Warrior Trading Pro Course” to be below the deck “Warrior Trading Starter Course.”

How do I do this???

Subdecks are sorted alphabetically.
A possible solution is to prepend the subdecks names with ascending alphabetic characters so that they look like the following:

a. Chapter 1: ...
b. Chapter 2: ...
...
...

The easiest solution is to pad zeros. So chapter 01, 02, etc. If you think you will go above 99 chapters, then pad two zeros 001,002, etc.

For the second part: Just change the name of the Deck you want to be the subdeck to
ParentDeck::YourDeck
in your case rename
Warrior Trading Pro Course
to
Warrior Trading Starter Course::Warrior Trading Pro Course

You may find it easier to drag a deck on top of another one instead of renaming it.