1 Click Storage. 2  Select Backup from the items listed. 3  Select one of the device backups, then click Delete. 4  When you're asked to confirm, choose Delete if you want to turn off Backup and remove all backups for that device from iCloud. 5  When you delete a backup, it also turns off backup of your device.OS. You can use these steps to manage your files from your iPhone, iPad, or iPod touch: 1  If you're using an earlier version of iOS, tap Storage & Backup, then tap Manage Storage. 2  Tap the name of the app that's using iCloud Drive.
A section is a cut through the 3d-model. An elevation is different. It shows the face of something, or perhaps more correct, the projection of an object/s to a plane.
The top two drawings are elevations -- the left is a front elevation of the entry and on the right is a side elevation. The entry portico is on the left hand side of this second elevation. On the bottom is a section created by slicing through the building and finally a plan. You can compare them to a further explanation and description of the actual space and the events that take place in it in the video presented right after: