About the Dimension Editor Canvas
The dimension editor canvas is where you to work on the hierarchies, levels, secondary attributes, and secondary/snowflake relationships for a particular dimension. Double-click a dimension to open it in the dimension editor canvas.
The dimension editor canvas shows the physical datasets that a logical dimension is based on. It shows the cube model from the focal point of a single dimension, whereas the main canvas shows the cube model from the focal point of the fact dataset.
tip
Tip: Pin the Hierarchies panel to the sidebar when working in the dimension editor. This is the panel for defining the dimension attributes that appear in the cube.