There are two states for bodies in the Ansys DesignModeler application:
Active: The body can be modified by normal modeling operations. Active bodies can be sliced and the resulting bodies are frozen automatically. To move all active bodies to the state, use the Freeze feature. Active bodies are displayed in blue in the Tree Outline. The body's icon in the Tree Outline is dependent on its type: Solid, Surface, or line.
Frozen: The body is immune to all modeling operations except slicing (Hidden and suppressed bodies are not immune unless frozen). To move a body from the state to the state, select the body and use the Unfreeze feature. Frozen bodies are displayed in white in the Tree Outline. The body's icon in the Tree Outline is dependent on its type - Solid, Surface, or line.
Other Body topics: