Where are my custom layouts, assets, plugins, shortcuts, etc., stored in the Cinema 4D preferences?

Plugins:

Window: Users\*USERNAME*\AppData\Roaming\Maxon\Maxon Cinema 4D R2*_********\plugins

Mac: Users/*USERNAME*/Library/Preferences/Maxon/Maxon Cinema 4D R2*_********\plugins

Custom Layouts:

Window: Users\*USERNAME*\AppData\Roaming\Maxon\Maxon Cinema 4D R2*_********\library\layout

Mac: Users/*USERNAME*/Library/Preferences/Maxon/Maxon Cinema 4D R2*_********/library/layout

Custom Assets: If you choose "Preferences" when adding custom assets to the Asset Browser:

*Note if you've created a custom database for your assets, the following folders will not include those assets.

Window: Users\*USERNAME*\AppData\Roaming\Maxon\Maxon Cinema 4D R2*_********\userrepository​

Mac: Users/*USERNAME*/Library/Preferences/Maxon/Maxon Cinema 4D R2*_********/userrepository​

Color Schemes:

Window: Users\*USERNAME*\AppData\Roaming\Maxon\Maxon Cinema 4D R2*_********\prefs - In the dark.col file

Mac: Users/*USERNAME*/Library/Preferences/Maxon/Maxon Cinema 4D R2*_********/prefs - In the dark.col file

Custom Scripts:

Window: Users\*USERNAME*\AppData\Roaming\Maxon\Maxon Cinema 4D R2*_*********\library\scripts

Mac: /Users/*USERNAME*/Library/Preferences/Maxon/Maxon Cinema 4D R2*_********/library/scripts

Changes to your Cinema 4D Preferences:

Window: Users\*USERNAME*\AppData\Roaming\Maxon\Maxon Cinema 4D R2*_*********\prefs - In the Cinema 4D.prf file

Mac: Users/*USERNAME*/Library/Preferences/Maxon/Maxon Cinema 4D R2*_********/prefs - In the Cinema 4D.prf file

Custom Presets (including Render Settings) in R24 (and older):

Window: Users\*USERNAME*\AppData\Roaming\Maxon\Maxon Cinema 4D R2*_********\library\browser - In the user.lib4d file

Mac: Users/*USERNAME*/Library/Preferences/Maxon/Maxon Cinema 4D R2*_********/library/browser - In the user.lib4d file

Custom Shortcuts in R24 (and older):

Window: Users\*USERNAME\AppData\Roaming\Maxon\Maxon Cinema 4D R2*_********\prefs - In the shortcuttables.res file

Mac: Users/*USERNAME*/Library/Preferences/Maxon/Maxon Cinema 4D R2*_********/prefs - In the shortcuttables.res file

Custom Presets in R25 (and newer):

Because R25 (and newer) has an updated preset system, presets are stored in the Asset Browser

Window: Users\*USERNAME*\AppData\Roaming\Maxon\Maxon Cinema 4D R2*_********\userrepository​

Mac: Users/*USERNAME*/Library/Preferences/Maxon/Maxon Cinema 4D R2*_********/userrepository​

Custom Shortcuts in R25 (and newer)::

Window: Users\*USERNAME\AppData\Roaming\Maxon\Maxon Cinema 4D R2*_********\prefs\shortcuts​

Mac: /Users/*USERNAME*/Library/Preferences/Maxon/Maxon Cinema 4D R2*_********/prefs/shortcuts​

Downloaded Assets from the Asset Browser:
Window: Users\*USERNAME*\AppData\Roaming\Maxon\_assetcache

Mac: Users/*USERNAME*/Library/Preferences/Maxon/_assetcache

If you are moving the downloaded assets from one machine to another, it's best to copy the _assetcahe folder itself and place this folder here:
Window: Users\*USERNAME*\AppData\Roaming\Maxon

Mac: Users/*USERNAME*/Library/Preferences/Maxon