small problem with optional section in NSIS with HM NSIS editor

I have simple little problem:

According to the docs here I should have a optional section which should allow the user to check it off right?

I have a section like this:

Section "SayHello"
 DetailPrint "blah blah"
 MessageBox MB_OK "hello"
SectionEnd

I've tried all sorts of combinations and tweaks but it never shows up an as optional check, the message box just executes every time no matter what. Except of course if I add an /o it just does thr开发者_JS百科ow the message box at all, but no option to check it on/off.

Its just eating me a little and I cannot seem to figure what is wrong?

Also, are sections executed in the order they are defined?

Note: My whole code, is generated by HM NIS editor I just ran the wizard for a basic installer and saved the script, then, I added this section. It also used Modern UI.

Thanks

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If you want the ability to toggle sections, you need to insert a components page before the instfiles page.

Yes, sections execute in the order they are defined in the script.