Modifying Default Layout Modes 

Customise the layout modes in your file

You can modify default Layout modes, and add your own Layout mode options to any given file. Layout modes can be applied to any or all the tabs in the file. You can show or hide Layout mode option icons on toolbars, and assign icons for exposing the options on the Main Toolbar. The Main Toolbar: Layout > Edit Modes... dialog is used to customise Layout modes:

Delete - deletes the corresponding Layout mode option from the current file. Duplicate - creates a new mode option below with the same settings as the existing Layout mode being duplicated. Active or Switch to - Active indicates which Layout mode settings are currently being displayed.  If no options are showing Active, click Switch to next to the mode settings pane you wish to display, setting it to Active, then click OK. Replace - copies the currently active mode settings into the corresponding mode options pane [OK] - applies the selected settings and displays the Active Layout Mode [Add] - adds a new mode options settings pane at the bottom of the list [Revert to defaults] - returns all settings to their default values and deletes any additional Layout mode options you may have create [Cancel] - closed the dialog without saving any changes.

More on Layout mode options

Layout modes are not exportable for use in new files configured by others, and do not include the settings available when configuring Styles. If you want to use a customised Layout mode option in a new file, delete the data from an existing file and change its source, thereby preserving the custom Layout. Options which can be changed to customise or define new layout modes are described below:

Styles -
View spacing -
Show main toolbar -
Show view toolbars -