Use the Create Similar tool to place an element of the same type as the selected element. For example, when you right-click a door in a view and click Create Similar, the Door tool becomes active with the selected door type already chosen in the Type Selector. The Create Similar tool is available for most Revit elements.
When you use Create Similar, each new element inherits family instance parameters defined in the Family Editor for the selected element. Elements created with Create Similar do not inherit values of instance parameters that were not defined in the Family Editor (such as Comments). The instance parameter values for the selected element apply to all elements created using that tool until the type is changed in the Type Selector.
For example, if the selected element is a wall, then its height properties are specified as the default for new walls. Walls created on the same level have the same Base Offset, Unconnected Height, Top Extension Distance, Bottom Extension Distance, Top Constraint, and Top Offset. If the new wall is created on a different level, the Top Constraint is set to the appropriate level.
To create similar elements: