I just got myself eBike with Bosch system. Controller Display is Purion. It is simple to use but as almost all keys have multiple functions, until I remember all functions I have to keep User Manual with myself. So I printed pocket size (74 x 52 mm) manual.
If you need it also, her it is, free to download and print.
How to print:
1. Download PDF document bosch-purion-display-manual.pdf
2. Print it on A4 format paper, using default size, no centering.
3. When page goes out of printer just insert it again without rotating or turning it, and repeat print.
That will provide four two side printed copies of manual. Just cut them out, bend at center of the longer site and that is it.