Problem

Specific elements in my design file cannot be deleted, moved, copied, etc. It is noted these elements are on the same level.

Solution

The issue is most likely occurring because the level on which the elements were placed are locked. You can change a level's Lock status within the Level Manager.
Follow these steps to resolve the issue:

1. Navigate to Level Manager

2. Right click anywhere in the column header section of the Level Manager and select "Show All". The menu should look like this.

3. Locate the "Lock" column within Level Manager and toggle off the lock setting for the affected level. You can do this by issuing a left click when hovering over the lock icon. Once the level is unlocked, the small lock icon that is shown below will disappear.

*Note that you can also change the properties of a particular level by right-clicking on the level>selecting Properties>toggle Lock setting to OFF>then select Apply and OK.

See Also

Levels and Level Libraries

Other language sources

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