[Keith Kelly]

Is there any shortcode that would allow me to display a forum from one of my other sites on a multisite installation?

I was hoping to display the latest topics of a forum from site “X” on site “Y” because they share interests. I am hoping to do that with shortcode and not a theme change because I am using the same theme across all of my sites.

[Keith Kelly]

I was thinking the shortcode could include the site id. Something like this:

[bbp-single-forum siteid=2 id=32]

I am not sure if that is possible.

[Anointed]

There is not currently a shortcode capable of doing this.

HOWEVER!!
There is a way of accomplishing this and so much more with a plugin.
https://wordpress.org/extend/plugins/network-latest-posts/

If you have ever had to deal with multisite and switch_to_blog() before, then this plugin is going to blow your mind away. Hands down my #1 rated plugin of the year 🙂