Custom reply template

I run PunBB on my forum ( http://www.k100-forum.com ) and I would like to know if it's possible to create a custom reply template for a specific forum.
I would like when the user click on the reply button (only on this specific forum) to have this template showing:
Is that possible and how to?
Thanks in advance.

Yes, it is possible to do such a thing via JavaScript, and if I'm not wrong forumotion had something similar for some time.

I'm going to try to do something similar.

Also, users will still be able to avoid that on certain ways but anyway

Also, have you tried something like this:
https://help.forumotion.com/t131789-add-a-form-on-creation-of-a-new-topic ?

Do you mean a reply to a topic or starting a topic?

Thanks for your quick answer.
I found my problem.... Javascript was disabled
I have 2 other questions:
- How can I force the editor to start in wysiwyg when I click "reply" for the specific topic or forum? Can I add something in the javascript?
- is that any code that could disable the "new Topic" button on this specific forum?

Here is a link to my Javascript file for people looking at the same solution:
Text file of the javascript

I also had to redesign my template, because when you switch between WYSIWYG and text mode, in WYSIWYG it add about 15 extra blank lines on the top of the table.
Please see attached pictures:

Also there are a couple of places where location is misspelled in your JavaScript.

Thanks again for your reply SLGray.
WYSIWYG is activated by default on the forum and it works on every other posts or forum
The problem is only with the JavaScript template. Is that a way to force WYSIWYG in the script for the template?

You also tell me that there are a couple of places where location is misspelled.... Could you point to me where is the error?
Thanks.

I noticed the errors in the last part of the JavaScript

You have locacion instead of location.

hello 

is this solved?