Layout options control the display, drawing, and editing of models in the Layout Editor. All layout options have installed default values. Option values may be changed on their installed defaults either globally (for all new layouts) or locally (for a particular existing layout).
Local options for a layout may be changed only on the top level of the layout hierarchy, not from within a subcircuit.
When a new layout is created, options assume their global values, unless there is an installed default which overrides the global default. Changes to global options only affect new layout designs (i.e., navigating to Tools > Options > General Options to open the global Options window, and choosing on the options in the Layout Editor tab) . To configure options for existing designs, navigate to the Design Options window (i.e., from Layout, select Settings). Choose options on the associated tabs, then click OK to save changes. All changes made in the Design Options window affect only the active design).