hi
I need same think like you. but I couldnt find one. I believe there is no such kind of plugin for wp multi site.
But I have an idea. I didnt try but probably it works.
1 – Instal this one to your wp https://www.featuredcontentgallery.com/
2 – Post some content to your MAIN WP how many you want.
3 – And EDIT YOU URL for your another page.
most of users will not realise that.
If some one have an idea please share us.
by the way I need a search plugin for wp multi site I am waiting for your advices
