The Display tab of the Properties palette directly controls the graphical properties of objects in an AutoCAD MEP 2023 toolset drawing.
Display tab showing Duct display properties
On the Display tab of the Properties palette, click (Select Components), and then click an object in the drawing area to make changes to the display properties.
Click (along the General title bar) for the Apply Display Component Properties to Other Display Representations worksheet to change other display representations at the same level indicated by the Display controlled by value.
Changes made on the Display tab become immediately visible in the display representation of the current drawing. You can also apply changes to other display representations. For example, you can specify whether a change you make to a display property will apply to the selected component for all objects of that type, all objects of that style, or only the selected object.