Can't change Linetype in "Layout and Detail Information Panel"

When using Layouts, I can change Print width and color in the “Layout and Detail Information Panel”, but the column with Linetypes in the Layers panel is nowhere to be found in the “Layout and Detail Information Panel.”
I would like to change from Continuous to a Dashed line, but only in one viewport…
Thanks for considering this question!

(am using Rhino 6 for mac)