Right-click the coordinate system you want to make active.This can be done from either the Markups tab or the 3D scene.
From the coordinate system context menu, select Active Coordinate System.
Info
title
Note
A dimension markup takes its measurement with respect to the coordinate system that is active at the time the markup is created. When the active coordinate system changes, the dimension label will not change---it will still display the measurement with respect to the coordinate system that was active when the dimension was created.
Right-click the coordinate system and select Properties.This can be done from either the Markups pane or in the 3D scene. This will open the Coordinate System dialog box.
In the Name field, type the new name.
Click OK.
Info
title
Note
The Global Coordinate System cannot be renamed.
You may also rename a selected coordinate system by choosing Rename... from the right-click menu or pressing F2.