How to resume app restore after stopping it on first opening Google Play?

I've installed a fresh stock ROM from Google site on my Galaxy Nexus.

At the time I've opened the Google Play and started installing the 157 apps... the problem is that I needed to stop downloading in the middle as I needed to move to an area without wifi coverage, so I pressed stop.

Now I don't see any option to resume that installation.

Is it really a one shot? How could I have paused it to avoid downloading it on 3G?

Answer

Use bmgr from adb shell. See this answer for a complete explanation of backup sets.

Root access is not required.

shell@maguro:/ $ bmgr list sets
  1234567890abcdef : droid48
  34567890abcdef12 : galaxy49
  ...

shell@maguro:/ $ bmgr restore 1234567890abcdef
Scheduling restore: droid48
done

This triggered a full restore of all the previously installed apps on my device instantly.