Inherit security from Folder in process models

Hi all,

We Need to Change the securtiy of all of our processes (450+).

I would like to set it in the Folder that contains all the process models so that I have to set it only once. For rules, it is possible to do it, but Folders that contain process models dont seem to allow it:

"Process model folder security controls access to the folder only, not to the process models inside that Folder"

Is there any simple way to apply the security Settings to all the process models insided a Folder in bulk?

Many thanks!