Editing

Use the editing tools to create and edit 2D and 3D solids. You can select, pull, move (in 2D and 3D), edit in cross-section, fill (heal), bend lines and edges.

In Discovery, there is little need for a distinction between creating and editing. There is no hierarchical feature tree, so you have considerable freedom when designing. Create a box by pulling on a rectangular region. Edit the size of the box by pulling on one of its faces. Draw a rectangle to create a pull-able region. Draw a rectangle on a face to create a new face.

In general, you are either editing or creating with one of the main tools (Select, Pull, Move, Combine, or sketching and editing in Section mode), the many secondary tools, or inserting relationships between faces in the design (Shell, Offset, Mirror). Combining objects (intersecting, merging, cutting, etc.) is handled by the tools in the Intersect ribbon group.

Selection is integral to face and edge manipulation. You can extend selections with standard controls (double-click, Ctrl, Shift), by right-clicking and selecting from the Select menu, or using Discovery's power selection functions.

A quick note about solids and surfaces: Discovery always converts a closed set of surface faces into a solid. Similarly, sketched lines that clearly create regions on faces are replaced with real edges. The change in face transparency and edge lines reflects this transformation.

You can cut, copy, paste, and detach objects in most tools.

You can also nudge objects in most tools. Hold Ctrl+Alt and the up or down arrow to nudge an object. The up arrow increases the dimension and the down arrow decreases the dimension. If you nudge multiple times then click Undo, all the nudges will be reverted.

In Discovery, there are three modes you can use to edit your designs:

Sketch mode	Sketch mode displays the sketch grid, so you can use any of the sketch tools to sketch in 2D.
Section mode	Section mode lets you edit solids by working with their edges and vertices in cross-section.
3D mode	3D mode lets you work directly with objects in 3D space.