Navigating text fields with a Focus 14 Blue braille display in the Pages app on an iPad

Hi,

I have a very specific question on using the Focus 14 Blue braille display with the app 'Pages' on I-Pad.

How can one navigate inside the text field? I cannot find the braille display commands to go to a previous or next written line in a text, or for example put the cursor at the end of an existing document to add some text there, in application 'Pages'.

Any tips are well appreciated!

Merel