my Samsung works the same. I just click on the message envelope, then "show all" lower left, then "navigation". "Trash" appears in the middle of the choices and it will take you to that file. Click on the tiny box on the right of the message you want to save and then "Choose action" from the options box that pops up. "rejoin conversation" and then the gold colored "go" button. Yes there are quite a few steps but it is pretty straight forward and operates like most software does.This is so easy on a PC - all you need to do is double-click the Messages icon, and it shows up.