I have an issue as shown below.

Any idea how I could solve it? Basically, all that is below "4.2. App Implementation" should be a subheading of of "4.2.". This means two things.

First, whenever I click the arrow to the left of "4.2.", they should all collapse (become hidden) because of being part of the "4.2" heading Second, they should automatically be formatted so that numbering looks like "4.2.1. Frontend Setup", "4.2.2. Backend Setup" ...

How do I achieve this?

I have an issue as shown below.

Any idea how I could solve it? Basically, all that is below "4.2. App Implementation" should be a subheading of of "4.2.". This means two things.

First, whenever I click the arrow to the left of "4.2.", they should all collapse (become hidden) because of being part of the "4.2" heading. Second, they should automatically be formatted so that numbering looks like "4.2.1. Frontend Setup", "4.2.2. Backend Setup" ...

How do I achieve this?

I have this issue here. Any idea how I could solve it? Basically, all that is below "4.2. App Implementation" should be a subheading of of "4.2.". This means two things.

First, whenever I click the arrow to the left of "4.2.", they should all collapse (become hidden) because of being part of the "4.2" heading Second, they should automatically be formatted so that numbering looks like "4.2.1. Frontend Setup", "4.2.2. Backend Setup" ...

How do I achieve this?

I have an issue as shown below.

Any idea how I could solve it? Basically, all that is below "4.2. App Implementation" should be a subheading of of "4.2.". This means two things.

First, whenever I click the arrow to the left of "4.2.", they should all collapse (become hidden) because of being part of the "4.2" heading Second, they should automatically be formatted so that numbering looks like "4.2.1. Frontend Setup", "4.2.2. Backend Setup" ...

How do I achieve this?