## Globally accessible features

Apart from loading, saving, creating domains and accessing the help functions, there is currently only one globally accessible function. It can be found in the FEAST V3 features menu.

### Edit FEAST V3 Header File

FEAST V3 files come in two flavours: in the inline version all domain information is united in a single file. In the other version the information is divided up into several files:

- Header
- Geometry
- Fictious Geometry
- Mesh
- Partition
- Boundary Condition

The header file contains the paths to the other files. The paths are always relative to the header file.

To replace on of the files, a few simple steps need to be conducted:

- Load the header file by clicking on the FEAST V3 Header button next to the orange text field.
- In the file dialog, select the file to open. The paths to the other files appear in the dialog.
- Click on the button of the file you want to replace.
- Select the replacement file in the filedialog. The new paths shows up in the corresponding text field. When saving the header file, the relative and not the absolute paths is used. So do not be confused if the full path is shown in the textfield.
- Click Save changes to overwrite the old header file.
  The original header file will be overwritten!