Select, move and delete faces

Pick Select (S) and click a face to open its settings. Drag a corner to reshape it, press Delete to remove it, and drag empty space to move the map. Undo brings back any change.

Faces rarely come out perfect on the first try. Every corner can be moved later, and every change can be undone.

Select and reshape

Pick Select

Press Select or S.
Click the face

Its settings open on the right: pitch, direction and sun. You can also click the face in the list on the right.
Drag a corner

Drag any corner to its right place. A corner shared with the next face moves for both faces, so they stay joined.

Delete a face

Select it and press Delete, or press the cross next to it in the list on the right. You’ll see Face deleted · ⌘Z to undo. Panels on a deleted face no longer sit on the roof and don’t count in the calculation — fill the roof again or delete them.

Move around

Drag empty space to move the map — in any tool. Hold Space and drag to move it while drawing. Scroll to zoom; press H to center on the house again. Esc deselects.

When a change is refused

The editor won’t let a face become broken. If a corner move would do that, it puts the corner back and says why:

What you see	What to do
Face … would cross itself	Move the corner so the edges don’t cross.
Faces … and … would overlap. To divide a face, draw a line across it from edge to edge.	Faces can share edges but can’t overlap. To split a face, use a line — see Draw roof faces.
A face would collapse — put the corner somewhere else	The corner is too close to another one of the same face.
The outline would cross itself — the corner went back	Drag the corner along another path.

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Updated October 6, 2026