# Modifying system files before sharing

You can modify some of the files in the C:\ProgramData\Trimble\Trimble Data\System Files folder in a text editor to meet your requirements and then copy those files to the other controllers.

Trimble recommends saving any modified system files with a custom name. If you keep the original name, then the files will be replaced when you upgrade the controller and any custom changes are lost.

To set up default job properties

To streamline the process of creating a job, create a job and configure the job properties that you want to reuse and then save the job as a template.

To set default values for the Reference, Description, Operator, or Notes fields, or to set these fields as "required" so that values must be entered in these fields, edit the JobDetails.scprf file in the C:\ProgramData\Trimble\Trimble Data\System Files folder. The settings in the JobDetails.scprf file are read each time the Trimble Access application is run. For more information on editing the file, refer to the notes provided at the top of the JobDetails.scprf file.

To modify the list of descriptions used, edit the descriptions.xml file in the C:\ProgramData\Trimble\Trimble Data\System Files folder. the descriptions.xml file is created when you enter descriptions for points. The description stack is unique for each description field.

To share groups of codes

To share groups of codes between controllers, create the code groups on one controller using the Measure codes screen. Code groups, and the codes within each group, are stored in a Measure Codes Database (MCD) file in the C:\ProgramData\Trimble\Trimble Data\System Files folder.

If you do not use a feature library, the software creates a Default.mcd file and this file is used whenever a job has no assigned feature library. Once you have set it up, you can copy the Default.mcd file to other controllers.

If you use a feature library, the MCD file is tied to that feature library and has a matching name. You can copy the MCD file to other controllers, but to use it in the software the associated feature library must also be on the controller and assigned to the job.

To lock a survey style

To prevent a survey style from being edited in the field, use File Explorer to navigate to the C:\ProgramData\Trimble\Trimble Data\System Files folder. Right-click the required survey style file and select Properties. In the General tab, select Read-only and tap OK.

In Trimble Access, the lock symbol to the left of the style name indicates that you cannot edit this style.

A locked style will be updated to reflect any changes made during the auto‑connect cycle when connecting to an instrument.

To customize the coordinate system database

To customize the coordinate system database used by the Trimble Access software, you must use the Coordinate System Manager software to modify the Coordinate System Database (CSD) and then transfer the modified database to the System Files folder on the controller. When a custom.csd file exists in the C:\ProgramData\Trimble\Trimble Data\System Files folder, the Trimble Access software uses the custom.csd database instead of the coordinate system database built into the software.

For more information, see To customize the coordinate system database.

To edit the list of antennas

The Trimble Access software includes an Antenna.ini file that contains a list of antennas that you can choose from when creating a survey style. You cannot edit this list in the Trimble Access software. To shorten the list or add a new antenna type, edit the Antenna.ini file in the C:\ProgramData\Trimble\Trimble Data\System Files folder.

To edit the content and format of the delta display or reports

The content and format of the delta display that is shown during stakeout or when measuring a point relative to a 3D axis is controlled by XSLT stylesheets. XSLT stylesheets are also used to control the output and format of reports generated during export or to create custom import file formats. You can edit the existing stylesheets or create new formats in the office and then copy them to the C:\ProgramData\Trimble\Trimble Data\System Files folder on the controller. For more information on editing stylesheets, see Custom import formats and Custom export formats.