1. In an active board part, click
![](../../electrical_design/ecad/images/smt_flatpat_preview16x16.png)
on the Graphics toolbar. A window opens with the board and its segments in the flat state.
2. To toggle the display of overlapping geometry, click
![](../../electrical_design/ecad/images/smt_flatoverlap16x16.png)
.
3. To toggle the display of the length and width dimensions of the unbent board segments, click
![](../../electrical_design/ecad/images/boundary_box16x16.png)
.