I talk about the view in the pictrue tree. I tried to add the variable %plant in the folio field at the folio properties. But the help says that only %id, %total and %autonum are allowed. Is it possible to define a autonum function for my application? How can i write this autonum?

Hello,
I have a question regarding the numbering of the pages. I want to order the pages by plant and then in ascending order.
Here in example:
Cabinet 1 - Page 1 / 3
Cabinet 1 - Page 2 / 3
Cabinet 1 - Page 3 / 3
Cabinet 2 - Page 1 / 3
Cabinet 2 - Page 2 / 2
Cabinet 3 - Page 1 / 4
Cabinet 3 - Page 2 / 4
Cabinet 3 - Page 3 / 4
Cabinet 3 - Page 4 / 4

Is that possible?
Thanks for your help.