Creating topic will also creates topic into another forum

No sure is it possible to develop something like this or is it even allowed, but just wondering what are the possibilities to achieve the following: My idea is to add possibility to create new topic in such way that there will be checkbox, which will give possibility to create same topic into another forum and also imports responses from that forum (ofcourse first you have to link your other forum account to discourse to be able to use this feature).
This feature will be very valuable for buy/sell forums.
What do you think is it possible and how big effort it would require to develop something like this?

I am working with someone who similarly wants to create a “sister” topic in another category to have discussion about the primary topic.


This plugin should get you most of the way there