My situation. I am taking a tpac trip with my wife and 3 year old toddler. I like to get 3 econ plus seats. I have only Silver status, so that wouldn't get me 3 Econ Plus seats. I am wondering if there are any problems with the following plan.

1) Subscribe to Econ plus adding 1 companion (on this route, it is only a little more expensive to get the subscription vs paying a la carte and I would be able to use it for the trips I take for another year) - I would reserve a window and aisle seat for my wife and I.

2) At T-24, as a Silver, I am be able to add a traveling companion to Econ Plus. I would want to get a Econ plus seat for my toddler (the aisle seat between us). I know there are risks that all Econ Plus seats are gone at T-24, but I have been following loads and this is a small risk.

#2 is what I am not sure about. How does United treat the situation where I have two traveling companions? Would I be able to get a 3rd Econ Plus seat as I believe? Or will they say that I can only get 2 Econ Plus seats, nevermind that I have a Econ Plus subscription (with 1 companion) and Silver status.