Install two radios in one antenna

I have some COMBA radios we can attach up to four radios in one antenna. Someone conece a coupler or already made some test this with the Mimosa? In radios combo can exceed capabilities to a giga using this form of 2 x 1 + 1 .

I think it is a good idea if the Mimosa work this way . I’m from Brazil have two links made ​​by Mimosa which are 48 km away and passing around 450 Mb . I am completely satisfied with the tests conducted to date and if there was this possibility think it would boost sales this regard. I thank you all and look forward answers.