3DForge

View
Left mouse drag: orbit · Right mouse / Shift+drag: pan · Wheel: zoom
F: center view on pivot · Pivot buttons (top right): rotate around origin or selection
Objects
Create (toolbar): pick Box / Sphere / Cylinder / Tube, set its parameters in the panel, click the ground or an object face to place it. The last created object is selected.
Select: click an object in the view or in the object list (double-click a list entry to rename it). Use the gizmo to move / rotate / scale; the grid field sets the snap step (0 = continuous).
Del: delete · Ctrl+D: duplicate · Esc: deselect · Ctrl+Z / Ctrl+Shift+Z: undo / redo
Shortcuts
1: Select · 2–5: Box / Sphere / Cylinder / Tube · W / E / R: Move / Rotate / Scale · X: gizmo global / local · Tab: edit mode
File menu: import / export JSON (lossless), 3DS, OBJ, STL, glTF/GLB.

Enter / leave: select an object, press Tab or click “Edit”. Esc clears the selection, a second Esc (or Tab) leaves edit mode.
Sub-objects: 1 / 2 / 3 or the flyout: Vertices / Edges / Faces. Click selects, Shift+click toggles, A selects all. The gizmo moves, rotates or scales the selection.
Vertices – Add: click a face or edge to insert a point (Enter toggles insert mode).
Edges – Add: select exactly two points of the same face; Enter connects them with a new edge and splits the face.
Faces – Add: Enter extrudes the selected faces.
Remove (Del): deletes selected vertices, edges (merges the faces) or faces. Disabled while nothing is selected.
Chamfer (B): bevels the selected edges; the width is set in the panel. Only edges between two faces are chamfered; faces with holes or interior points are rejected.
Mirror X / Y / Z (panel): repeats every edit on the opposite side of the object's local plane. Several axes can be combined. With Faces – Add only the edited side stays selected.
Face colour: with faces selected, the panel shows a colour field for just those faces (Reset restores the object colour).
Selected edges are drawn as thick orange lines.