Shortcuts & settings

The tables show the default bindings. Customize them in Edit > Preferences > Add-ons > BagaCAD. The header and sidebar reminders follow your settings.

Main actions

Key or gesture	Action
Left click	Draw / confirm / extrude a hovered face, depending on context
Ctrl + click away from guides	Draw on a face
Shift + click on a face	Add / remove it from the extrusion selection
Alt + click on a face	Extrude connected coplanar faces
Right click	New chain / cancel preview / deselect, depending on context
D outside input	Switch Draw / Dimensions
X / Y / Z	Lock an axis
Shift + X / Y / Z during drawing	Lock YZ / XZ / XY
Tab while drawing	Switch length / angle input
Ctrl + Z	Cancel an active preview, otherwise undo the last validated edit, including extrusion
Backspace	Delete a digit or cancel the current step; keep validated geometry
Esc	Cancel input/setup/selection, otherwise finish
Enter	Confirm input/selection, otherwise finish
Hold Ctrl while drawing	Disable snapping while held; enabled by default
Hold Ctrl while extruding	Enable snapping while held; disabled by default

Shapes, offsets and edge editing

Key or gesture	Action
C / B / O	Circle / rectangle / offset; repeat the active key to return to lines
Tab in Circle	Switch centre-radius / three-point method; restart the shape
V in Circle	Switch full circle / open arc
Wheel after the first circle point	Change segments, without zooming
Shift / Alt in Rectangle	Square / centred rectangle; combine for a centred square
Tab in Rectangle	Switch width / height input
Hold F	Invert shape/offset face filling
Backspace in a shape	Delete a digit; without input, reset the placed points
Shift + clicks in Offset, then release Shift	Select individual edges, then start the shared offset
Hold Shift + right mouse and sweep	Erase visible edges
Alt over an edge, then left click	Preview, then confirm extension to a real target

See Shapes & offsets and Erase and extend for steps and modifier priorities.

Construction guides

Lasting references, kept until removed. See Guides & grid for the difference with temporary points.

Key or gesture	Action
Hover a vertex / midpoint for 2 s	Add an XYZ guide
Hover an edge interior for 2 s	Add an edge guide
A on a vertex, then click another	Add a guide through the two vertices
Hold Alt over a guide	Move it
Hold Shift over an XYZ axis	Rotate that XYZ guide
X / Y / Z during rotation	Lock the local rotation axis; repeat to unlock
R / Shift + R	Remove last guide / remove all guides and temporary points; the grid is kept

Temporary reference points

Short-lived alignment points for the segment in progress; not editable.

Key or gesture	Action
Hover a vertex for 0.15 s, then move away	Use its XYZ projections and edge directions
Hover a guide intersection for 0.15 s	Remember that intersection
Confirm a segment / right click / Shift + R	Clear the temporary points

Grid

Key or gesture	Action
G	Show / hide the grid
Shift + G	Reposition / reorient the grid
Ctrl + G	Set cell size
Alt + G	Align grid to a face
G during direction setup / Ctrl at second click	Use direction-segment length as cell size

Dimensions

Key or gesture	Action
Click / drag a value	Type / adjust it
Ctrl while dragging	Use rounding increments
Shift while dragging	Use fine adjustment
Tab outside input / click support icon	Edge: switch fixed endpoint; vertex: toggle anchoring
Hover a value, then click its padlock	Toggle the dimension lock
Ctrl + A / Ctrl + V during input	Select all / paste
D / Esc outside input	Return to Draw

Preferences

Setting	Default	Controls
Create Guide Timer	2.0 s	Hover time for an XYZ guide on a vertex / midpoint
Edge Guide Delay	2.0 s	Hover time for an edge guide
Temporary Vertex Delay	0.15 s	Hover time for a temporary point on a vertex
Temporary Intersection Delay	0.15 s	Hover time for a temporary point on an intersection
Default Grid Step Size	0.1 Blender unit	Initial grid cell size
Shapes: Create Faces by Default	Enabled	Fill closed shapes; hold F to invert
Circle Segments	48	Initial resolution (8–256; wheel while drawing: 3–256)
Length Snap Step	10 cm	Ctrl-drag increment in Dimensions
Angle Snap Step	15°	Ctrl-drag increment in Dimensions

Shortcut rows configure keys and modifiers. Shared input keys configure picking, confirmation, cancellation and text correction. Hold modifiers configure related gestures together; use a different modifier for each row. Red rows flag conflicting bindings. Right-click a setting to reset it to its default.

Saved preferences can differ from these defaults. Digits, decimal separators and minus remain numeric input. View navigation follows Blender's own keymap.

The viewport header changes with the current step: start point, segment input, face selection, extrusion, guide edit, grid setup or dimension edit. It displays the configured bindings. Ctrl disables drawing snaps but enables extrusion snaps while held; Alt moves a hovered guide.