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Chapter 20 Selecting & Deleting Entities
Selecting All Entities in a Drawing
With a single command you can select every entity in the drawing except
those on background layers and masked layers. Selecting everything is useful
when you want to reposition the drawing on the page, align the entire draw-
ing to the grid, change specific properties for the entire drawing, and so on.
To select all entities in a drawing
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On the Edit menu, click Select, All, or click the Select All button on the
All-In-One toolbar.
Using the Selection Modifier
The Selection Modifier allows you to add or subtract entities from the selec-
tion set based on their properties. On the Edit menu, click Select, Modify
Selection to access the Selection Modifier dialog box, or click the Selection
Modifier button on the All-In-One toolbar. Using the Selection Modifier, you
can select all entities on the Electrical Connections layer, all entities
displayed with red dashed lines, all symbols that represent equipment
purchased from a specific manufacturer, and so on.
To specify the entities you want to add or subtract with the Selection
Modifier, you build a selection statement. This statement describes a group of
entities using qualifiers and operators. A qualifier is a phrase, such as
color =‘Red’ or layer=‘Plumbing’, that identifies a specific condition. An
operator is a word that combines qualifiers to form a more complex qualifier.