Scale for SID & START not working

[Papy59]

As said in the title the scale to go down and select a SID or STAR does not work.
We only know how to select what is visible for example: the displayed list stops on OSIP3 and that we must have a SID RANUP1 we do not know how to go down to display this SID

[flying_atco]

Use the Arrow keys or wheel next to the Keyboard.