"Walk" is not an option for a course?

Can someone please tell me why a "walk" is not an option for a course? I don't mind using "hike", but "walk" would be a lot more accurate.

Used for first time yesterday, pretty cool.

Oh, can the upcoming turn notification be changed? 75 feet seems ok for walking, I mean hiking, but for a run I'd like more feet. 

Thank you and Happy New Year

PS. New 965 owner too. First Garmin is my 235. Three+ years old and the screen is delaminating. ;-(