Should you require more control of the placement and process of installing the plugin or you are not permitted to
use automatic installation, you can manually install it via FTP:
-- Users
with automatic installation of updates enabled will not be automatically logged in after reboot from installing Developer Preview 7.
Not only will this
enable automatic installation of all future companion apps, but it will retroactively install the apps you might have missed when manually installing them in the past; if you look at the list of applications on the main screen of the Watch app, as seen below, after enabling the setting you'll see the missing apps installing to your Apple Watch.
Hit the install button to start the download and
automatic installation.
The company doesn't clarify how long the period of
automatic installations will last, or when it will actually start, but it puts Candy Crush in some pretty exclusive company, even if it doesn't last forever.
It's worth noting that these settings delay
the automatic installation of updates.