Few questions about Ghidra

Question

I have a few questions to those are using Ghidra:

1. Is there any option to write notes only in the Decompiler window, for like that for example: printf("Test") // Printing some data -> like that in the right side of the code

2. Is there any option to make the code more pretty to read ? for example:

   int main(){ if (true){ printf("aaaaa"); } }

I want to insert enters and the code will be like that:

int main()
{
if (true)

{ 
printf("aaaaa"); 
}

}

If there is option to insert enters ?

3. Do you have any recommendation for plugins that can find overflows automatically (stack, heap) ?