Any way to recover Yosemite download from AppStore? When I opened the folder of previously paid-for apps on the AppStore in order to download Yosemite, I inadvertently clicked the "X" mark next to the "Download" button. This removed Yosemite from the list. Any way to get it back?
In the App Store, Store => View my Account, In the Account Information window, the item Hidden Items => Hidden Purchases: Unhide any hidden, redownloadable Purchases.

Click Manage, You'll see a list hidden purchases which you can UNHIDE.