;
PolyCAD

The Opening Edit Window collates all Openings and connected Groups into one window to assist in checking the model. When an opening is selected, all other entities are hidden apart from the connected groups which are shown in red and blue for groups A and B respectively. The primary aim of this window is to cycle through openings checking for the correct connection and location of the opening with respect to connected groups. If the zoom to selection window is down, the viewing will zoom to fill the screen with the extents of the selection. The window can be docked with the left, right and bottom sides of the application window.

Figure 1, The Openings Tool Window.

Controls

Expands the list of openings to show connected groups and maintains this state when the window is updated.
Collapses the list of openings to hide connected groups and maintains this state when the window is updated.
Toggles zoom to extents whenever a opening is selected in the window.