Just to verify, I will be pasting both codes right? And this is each time I will be editing a drop-down list? And also for the StrPwd "", am I the one to set that password? If so, where? Sorry I am really confused and thank you so much for all your help and patience.

Yes.
No. It's only the second sub that would be replicated. You would need to change its name (e.g. from DD1 to DD2) and the name of the Dropdown in references (e.g. from Dropdown1 to Dropdown2).
Unless you apply forms passwording to the document, you can leave in blank; otherwise, give it the same name as the password you apply in the document.

__________________
Cheers,
Paul Edstein
[Fmr MS MVP - Word]

Thank you--whenever I click on the Drop-down form field from the Legacy, it's not showing the arrow at all that you will click to show the options. Where do I also change the name of the Dropdown in the document or in VBA? I can only see the Bookmark field on the Properties section of the form.

I don't know what arrow you're referring to. Right-clicking then choosing 'Properties', or choosing 'Properties' from the Developer tab will both open up the formfield properties dialogue.
It needs to be the same in both. Word automatically assigns names like Dropdown1, Dropdown2, etc., so you can use those in the VBA.

__________________
Cheers,
Paul Edstein
[Fmr MS MVP - Word]

Yes I right-click on the Legacy Drop-down so that I can add the items/choices. But after setting it all up including the bookmark, I am only seeing the first option I have entered and the rest can't be seen because there is no drop-down arrow.

That's because there isn't one. A formfield only ever has the bookmark you (or Word) give it - you can't choose an existing bookmark that's been assigned somewhere else.

__________________
Cheers,
Paul Edstein
[Fmr MS MVP - Word]

But how do I make it as a drop-down list when it won't show the options I'll be providing? This is not the content control I am using but the one from the Legacy Tools.

This is what I have--the N/R is the one from the Legacy Tools and still has 2 more options and the Choose an item is a content control. The arrow beside it is what I am not seeing in the Legacy drop-down to show the options.