Multiple markups can grouped to behave like a single markup. Grouping creates a single element that can be moved, edited, and copied and pasted at the same time and they can be added to the Tool Chest for reuse. Additionally, multiple groups can be grouped (or "nested").
To group markups:
Hold down the SHIFT key and select two or more markups to be grouped.
Note: The first markup selected will be the "dominant markup" unless another one is selected as described below. By default, the properties of this markup will determine which columns are displayed in the Markups list for the group.
A group will appear as a Group item in the Markups list with a toggle arrow next to it.
Click the toggle arrow beside a Group item in the Markups list to expand or contract the group. When expanded, the individual markups in the group are shown.
By default, when markups are grouped, the values in the measurement columns (Count, Length, Area, Wall Area, and Volume) for the Group item will be the sum of those measurements for all the markups in the group, provided that all the markups in the group support that measurement. If one or more markups in the group do not support the measurement, the value for the Group item will be blank.
Multiple groups can be grouped together, creating "nested groups." Nested groups maintain their hierarchy (that is, they are not flattened into a single group), making it possible to remove some or all parts of a nested group.
To create a nested group:
Note: Nested groups can be nested with other groups or even with other nested groups, allowing for an unlimited number of nesting layers.
Markups can be grouped with existing nested groups. When this is done, the markups are automatically added to the topmost nesting layer.
To group markups with a nested group:
Measurement values for Group items in nested groups behave the same as they do for un-nested groups except that higher level groups will contain the totals of all the groups nested under them. Note that, just as with un-nested groups, all the markups contained in a nested group must support a given measurement value in order for the sum of those measurements to show for the Group item.
A group can be moved and resized as single element in the same way you would move or resize a single markup, but the markups within the group can also be moved and resized within the group without ungrouping.
To move or resize the markups individually:
Individual markups that are in a group can be edited without needing to be ungrouped.
The process for ungrouping varies depending on whether the group in question is nested or not.
This process will ungroup all markups in an un-nested group.
Nested groups are ungrouped one layer at a time, starting with the topmost layer. For example, if a nested group contains two groups, and those two groups are each nested groups (so, the group is nested three levels deep), then ungrouping this group would "break" the topmost grouping layer, resulting in two separate groups, each containing nested groups, as illustrated in the image below.
To ungroup from the topmost nesting layer: