Change Layout to Landscape in Menu

Often times I make a layout (using the menu), go to page setup change to landscape, then resize my graphs. It'd be awesome if there was a checkbox or something in the new layout menu to go landscape. It'd definitely save me a lot of time.
You can capture this as a preference. After creating a layout and setting to landscape, choose Layout->Capture Layout Prefs.

For details execute:
DisplayHelpTopic "Layout Page Setups"

and
DisplayHelpTopic "Page Layout Preferences"

Thanks for the tip, it is helpful. The problem is I use landscape about 50% of the time and portrait 50% of the time in terms of layouts, so it'd still be nice to have an option in the layout popup. This should help a bit though with repetitive layouts with different graphs.
Kathreen,

If you know in advance what Layout orientation you want, you can open the Menu-> New Layout dialog window, add your inputs, then use the "To Cmd Line" button. On the command line insert the first flag /P=Landscape or /P=Portrait and execute the command.

From a function you can use the NewLayout operation, again with the /P=... flag to select your orientation.
For what it's worth, the New Layout dialog in Igor 7 will have an option to choose the page layout orientation from among the following options: Default, Portrait, and Landscape.