After I installed Wrye Mash, when I opened it for the first time I clicked on the Installers tab and clicked cancel on the Initialization pop up, now I can't figure out how to get that pop up to show again, help?

(from readme - ? When you first visit the Installers tab after starting Mash, Bain will need to go through an initialization process. If you've done this before, and no new packages are installed, and the machine is "warm", then it will take on the order of ten seconds. )