add the possibility to save CFZ file with older version.
For example if someone work with v2019.2 it shloud be able to save under a v2018 configuration. This feature will facilitate the support on the forum.
Sometime new release came with bug and some user, like me, decide to stick with a older version because it is more appropriate for their needs.
From my personnal experience, it's harder to give the appropriate support without CFZ file.
