How to delete marked turns when following route - Garmin 8617

On my Garmin 8617 I’ve uploaded routes plotted on an iPad. When I display and follow the route on the 8617 each turn is indicated with a white box containing the turn number, such as TURN 34.

The routes plotted using Navionics on the iPad don’t have each turn so prominently marked. I find they clutter up the display. Is there any way to set the 8617 so that it doesn’t have each turn marked with a prominent white box, but still shows the route and allows following it?

Thank you.