Yes, with care the ImageFileConfig.txt configuration can be set to be uniform across all logged in users. Be careful though, the "tokens" for Scheduler differ and are listed in the Scheduler SampleImageFileConfig, not in ACP Help. The reason is that the job structure is so different.
In our debrief today I expected to deal with this issue and find out what you want exactly. As I understand, you do not want each user to have their own data, but all users' data to be put into one place accessible to all. We can cover this issue as there are subtlties.