From version 6.1, shapes supplied correspond to a given version number. They are stored at site level in directories identified by the MEGA version number with which a new set of shapes has been delivered.

A new diagram always uses the most recent version shapes directory. However, existing diagrams continue to use shapes from the directory of the version with which they were created.

"Method" shapes, "Screen background" shapes and "Decorative" shapes are classified in different directories.

The structure is as follows:

Modification or replacement of these shapes is not recommended since they may be deleted and reinstalled from one version of MEGA to another.

Shapes can however be customized at environment level. To do this, the shape file (.MGS) is copied in the Mega_Usr directory of the environment, and the file "Read-Only" characteristic is cleared.