Hi,
That is because annotation objects on Layer "Electrical" are in the Paper space and other objects (plans) are in the Model space, which you can observe through viewport created in Paper space (Layout).
If you activate Model space (double-click inside viewport in Layout) you can edit Model space objects, but you cannot edit Paper space objects and vice versa.
About zoomu=ing: you can synchronize zooming between model space viewport and paper space when you are "inside" viewport by locking viewport.
Please read more about paper and model space here:
https://knowledge.autodesk.com/support/autocad/learn-explore/caas/CloudHelp/cloudhelp/2016/ENU/AutoC...and look here:
https://www.youtube.com/watch?v=CeQqCHb0pp0Maxim
