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

Window: Users\*USERNAME*\AppData\Roaming\Maxon\Maxon Cinema 4D 20**_********\plugins

Mac: Users/*USERNAME*/Library/Preferences/Maxon/Maxon Cinema 4D 20**_********\plugins

Custom Layouts:

Window: Users\*USERNAME*\AppData\Roaming\Maxon\Maxon Cinema 4D 20**_********\library\layout

Mac: Users/*USERNAME*/Library/Preferences/Maxon/Maxon Cinema 4D 20**_********/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 20**_********\userrepository​

Mac: Users/*USERNAME*/Library/Preferences/Maxon/Maxon Cinema 4D 20**_********/userrepository​

Color Schemes: dark.col file

dark.col file Location

Window: Users\*USERNAME*\AppData\Roaming\Maxon\Maxon Cinema 4D 20**_********\prefs 

Mac: Users/*USERNAME*/Library/Preferences/Maxon/Maxon Cinema 4D 20**_********/prefs 

Custom Scripts:

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

Mac: /Users/*USERNAME*/Library/Preferences/Maxon/Maxon Cinema 4D 20**_********/library/scripts

Changes to your Cinema 4D Preferences: Cinema 4D.prf file
Cinema 4D.prf File Location

Window: Users\*USERNAME*\AppData\Roaming\Maxon\Maxon Cinema 4D 20**_*********\prefs

Mac: Users/*USERNAME*/Library/Preferences/Maxon/Maxon Cinema 4D 20**_********/prefs 

Custom Presets (including Render Settings) in R24 (and older): user.lib4d file

user.lib4d File Location:

Window: Users\*USERNAME*\AppData\Roaming\Maxon\Maxon Cinema 4D R**_********\library\browser

Mac: Users/*USERNAME*/Library/Preferences/Maxon/Maxon Cinema 4D R**_********/library/browser

Custom Shortcuts in R24 (and older): shortcuttables.res file

shortcuttables.res File Location

Window: Users\*USERNAME\AppData\Roaming\Maxon\Maxon Cinema 4D R**_********\prefs

Mac: Users/*USERNAME*/Library/Preferences/Maxon/Maxon Cinema 4D R**_********/prefs

Custom Presets in R25 (and newer):

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

Window: Users\*USERNAME*\AppData\Roaming\Maxon\Maxon Cinema 4D 20**_********\userrepository​

Mac: Users/*USERNAME*/Library/Preferences/Maxon/Maxon Cinema 4D 20**_********/userrepository​

Custom Shortcuts in R25 (and newer):

Window: Users\*USERNAME\AppData\Roaming\Maxon\Maxon Cinema 4D 20**_********\prefs\shortcuts​

Mac: /Users/*USERNAME*/Library/Preferences/Maxon/Maxon Cinema 4D 20**_********/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