How did vB.org place thread prefix dropdown menu?

[dbirosel]

The mod 'Thread Prefix' is being used in vb.org but I want to know how to place the code right under the announcements in FORUM DISPLAY. I been trying to mess with it, but i suck at coding. This is what I am refering too:

https://vborg.vbsupport.ru/


Anyone out there willing to help me out? Shouldn't be hard for experience coders. Please!!!!!

I need a coder to help me please!