Currently you are able to open and close docked views, but if you wanted to change the height, or any other properties you are unable to. For instance if you created a view to show system alarms and populate them in a header you may want to make the docked view the height of 1 through N number of rows. Example requested here https://forum.inductiveautomation.com/t/change-perspective-dock-height-in-runtime/32070/2