To change the color of the cable tray, you may need to adjust its visibility settings. You can do this either. Is there a way to change your cable tray to a different color? Currently in 3D it shows the cable tray as gray but i would like to change the color to red instead. 08-08-2016 08:07 AM If you just want it solid red it a specific view. Click Options in the bottom right. Click Manage tab Settings panel MEP Settings drop-down Electrical Settings. if the cable tray has three. How do I change the colors of the cable trays / cable trunking in Revit? Let's say I have submain cable trays, ELV tranking, and other types of electrical trays, and I want to change their colors as per their disciplines? Note that I could change the whole type (Cable Tray) in Object Styles, but.