Blocks, groups and worksessions are methods for organizing model elements.
Blocks are named groups of objects that act as a single object in your model. Blocks are useful for repeated objects such as symbols or components. Blocks save you time since you can reuse the components instead of re-drawing them each time. An advantage of using blocks for repeated content is that using blocks requires less memory. In addition, you can redefine a block and all of the instances placed in the model will update.
Define a block object.
Allow selecting a block instance to change the block geometry and update the block definition.
Manage the block definitions.
Explode a block including any nested blocks into component objects.
Save selected objects to a new file.
Save objects to a new file with a specified origin and construction plane.
Insert block objects stored in the file or import a file as a block definition.
Set a world origin that is used when inserting the model into another.
Replace block instances with a different block definition.
Grouping objects allows selecting multiple objects by picking one of the group components. Groups can be nested and named.
Organize objects into a single component.
Add an object to a selected group.
Detach objects from their parent group.
Remove the group status from objects.
Name a group.