Show non persistable data on a list screen

Hi,

I am processing in a MicroFlow a table with data which is loaded from an external file. The data is adding and/or changing other tables (customer and ship to master data).
During the processing I create non persistable objects with messages ("Customer xyz created", "Customer abc changed"). I also add these messages in a list.
Its more than 2000 customers, so I don't want to use a normal <Display message>.

When full table is processed, I want to show the full list of messages and thought to use <Show page>. But a list view or data grid can read from database  but only persistable items. Using the MicroFlow itself is causing a loop (user starts the MF and the MF call the page, which calls the MF,........).

I am relatively new in the Mendix world and probably ovelooking a simple solution. But for the moment I would appriciate any help in this: How do I get my message list on screen when the MF has finished?

Thanks a lot for any help.

René