The Clear Data to Default dialog allows you to:
The options are:
All data - choose this clear all attributes at the current level
All data on current tab - choose this to clear only the attributes associated with the current model data tab. For example, clear all Constructions data.
Currently selected data (name of currently selected attribute). This option only appears on the dialog when the dialog is opened by right-clicking on a specific attribute. In this case only the selected attributed is cleared.
Clear custom openings - choose to clear any custom openings and revert back to using default facades.This option is only available when the 3-D model is visible.
'Clearing to default' removes any hard-set 'user data' (shown in red) from the current object and instead default data is passed from the 'parent' object in the hierarchy (Model Data shown in blue).
You can control the extent of the 'clearance' by setting the Clear Down to data at the bottom. Leave this data as Surface level if you want all data in the currently selected model object (including child objects) to be returned to a default state.
Note: The Clear data to default command does not apply to CFD boundary object attributes such as window Flow in and Flow out, Supply diffuser Flow rate attribute and all other attributes associated with CFD boundary objects.
See also the Model data hierarchy and inheritance tutorial
Using Clear data to default at building level has a special function. It causes all data below building level in the model hierarchy to be cleared but does it not clear the data at building level. This makes sense when you consider that building level is effectively top level as buildings don't inherit any model data from Site level.
The way to understand use of this function at building level is that data at block level and below is cleared which ensures that building data is used throughout the model.
The Clear data to default dialog can be accessed in 2 main ways:
From the top toolbar or Edit menu, in which case the clearing can be applied to all data on the current tab or to all data.
From the context menu when right-clicking on a specific attribute in the model data, in which case only data for the selected attribute is cleared.