Re: No button to download Monte Vista
@poppingmythik You can in fact download Monte Vista into a Steam install. (I have a Steam install and have installed the world a few times.) Have you bought it already but can't download it, or do you want to buy it? If you already own it, all you need to do is go here:
https://store.thesims3.com/montevista.html?categoryId=12642
Sign in with your EA/Origin account, and you should see a Download button. This works the same way in any kind of install.
If you don't own MV, you can buy it, or better yet, the bundle that includes MV and Hidden Springs, from Origin or the EA App. You'll receive a code for each one in your email receipt, which you then need to register on the store site, NOT the EA App or Origin. Once you do that, you can install your content through the store site.
The important thing to remember is to register your world(s) in the same EA account that you used to register your Steam-bought base game in Origin. If the accounts don't match, the world won't install properly.