To save customizations as a preset, click the Platform Presets button , and then select Save Preset As.
Replacing a preset lets you quickly update it as you design.
After creating a new folder, edit the folder’s name by double-clicking it. After a preset folder contains a preset, it cannot be renamed in the Save Preset As window. Instead, rename a folder using Customize Menu or the Preset Preferences. See Customize the Presets Menus.
To add folders at same level as the "My Presets" menu, create a presets add-in. See Presets Add-ins.