Along with other changes to Blender 2.8’s selection system, border select, the ability to select multiple objects or elements with a single action, has also been updated so each action is now defined as part of a distinct Select operation that’s more immediately available from the ToolBar.
Important: if LEFT-click is set as the selection default it may disable or interfere with other operations and function associated with the left-mouse button, e.g. Ctrl + left-click drag will no longer Lasso Select.
The three main types selection that use a border or an area to add multiple objects or elements, are;
- Box Select (B alternatively Shift + Space, B).
- Circle Select (C alternatively Shift + Space, C).
- Lasso Select (Shift + Space, 2).
Design note: for Box and Circle select, whilst the traditional shortcut keys work, B and C, the border selection tools are also accessible from a context menu that pops up using Shift + Spacebar where a new shortcut, 2, has been added for lasso select (Shift + Spacebar, B (Box)/C (Circle)/2 (Lasso)).
Important: to properly enable border selection make sure to press shortcut key and mouse click in the correct order; Box – Shift + Space, B, Circle – Shift + Space, C and Lasso – Shift + Space, 2.
When left-click dragging the mouse in any editor or area where the option is available;
- Box Select will draw out a box or area, selecting anything within the border defined.
- Circle Select will ‘paint’ or click-select objects, only those actively selected will be included.
- Lasso Select draws out a manually shaped area defined by the mouse and where it travels, selecting objects within the border delineated.
Design note: in Object Mode (3D View) selection is not based on the mass or structure of a mesh but its Origin, so long as an Origin falls within a selection boundary the object, and associated mesh, will be included. For editors or areas where the Select options are not visible (the toolbar button not shown) use the shortcut keys, B and C, to activate Border and Circle selection.