++The configuration system has a node called editor/grids, which is an ordered +list of preset grid settings. This list should contain the grid settings +preferred by the user, or preferred for the given design. Since this is a +configuration item, the usual conf rules apply (e.g. local grid config +can be saved in the project's config or even in the board file). +
+While drawing, the user can use the {g b} and {g f} hotkeys, or the shorter +[ and ] keys to step the current grid, selecting the previous or next item +from the list. The grid sizes menu will always have the currently selected +item checked. +
+If the user changes grid properties directly, the new grid setup will most +likely not match any of the presets and the check mark is gone from the menu. +However, pcb-rnd remember the last used preset menu and upon the next +stepping it will move from the last selected preset grid. + +
+The format for the grid configuration is a simple text that lists an +optional grid name, the mandatory grid size, the optional offset and +optionally instructs pcb-rnd to also switch units when the grid is activated. +The full syntax, optional parts written in [] is: +
+[name:]size[@offs][!unit] ++
+(The optional name has no functionality other than being displayed, helping +the user to remember the purpose of the grid.) + +