Default folder customization process

Hi Folks,

We have following requirement related folder setup.

Initially we create a folder for Invoices window, being in one user and selected as public folder/ ope as default.

if this folder should be default for other resposibilities or users we need to setup admin folder setup either by repsonsibility or User, but we want to setup this folder for entire application, so in future if we create any new responsibility / user for the same Application this folder should automatically default to newly created responsibility/user.

how we can achieve this. in system administrator guide one option available but this is also responsibility/user specific how we can make it as application specific.