As part of the installation of Bentley Hevacomp V8i (v26) you will be given a number of configuration options. These can either be set manually or the settings from v25 can be copied over into the v26 installation.
First of all, locate the configuration file from your v25 installation. This will be in the base installation folder - Heva25.
If you examine this folder you should see something like the following:
Copy the Custom.Def file.Now locate the Hevacomp Data folder for your new Bentley Hevacomp V8i (v26) software.
Copy the Custom.Def file from above into this folder. If asked to overwrite the existing file, select yes. Next time the software is started the Standards and Location configuration will match your v25 installation.