To enable Sync Edit Params, simply go to HKEY_CURRENT_USER\Software\Borland\BDS\4.0\Code Insight and create a new string value with the name Sync Edit Params and set the value of the data to 1.
How to free more space on your home drive by redirecting the location for SDKs in RAD Studio
Learn the command line used to compile System.pas in Delphi