To edit the post, you may click the Paragraph icon at the
left of input box to show more actions.

Subtitle
from H2 to H5
Put the cursor on the row of the text that you
would like to make it as heading, and click the paragraph icon > click
H2 >
choose a size. You may clear the format by deleting the text, and this method
applies to all of the actions.

Bulleted
List or Ordered List
Put the cursor on the row of the text that you
would like to make it as bulleted list or ordered list.

Quote
Put the cursor on the row of the text that you would like to
quote, and click the paragraph icon and then Quote.


Code
Block
Put the cursor on the row of the text that you
would like to code block, and click the paragraph icon and then
Code
Block.


Spoiler
Put the cursor on the row of the text that you would like to make it as
a spoiler warning, and click the paragraph icon and then
Spoiler.


When your post or reply is submitted, a Spoiler
Warning will appear as shown below.

After clicking the arrow of the drop-down menu,
the hidden text will show up.