I see some folk battling with quote feature of the software.
How it works:
When you respond to a post you can click the

or at the top right, click the the

button inserts the entire post you are responding to. You can then delete the parts you do not want OR
Reply to the post; just below the edit window is the topic summary if you scroll down a bit, highlight the text you want to quote and copy it, (right click and copy or Ctrl + C)
In the edit box there is the

button careful which one you use, the one to the left is for inserting code and we will not use that.
[ quote] the first click gives this
[ /quote] the second click gives this
[ quote]Or if you paste the text and select it either using the left click and drag or shift and cursor or double click the sentence, when you use the quote button it puts the on quote and off quote at the beginning and at the end like this[ /quote]
[spoil]Try it, it is easy enough[/spoil]
That is what the spoil button does
Blessings