Command panels > Modify panel
From the Create panel of gmax, you place basic objects in your scene, including 3D geometry, 2D shapes, lights and cameras, and helpers. As you do this, you give each object its own set of creation parameters, which define its geometry and other characteristics depending on the type of object. Once placed in a scene, objects carry their creation parameters with them. You can change these parameters on the Modify panel.
You also use the Modify panel to assign modifiers. Modifiers are tools for reshaping an object. While they mold the final appearance of the object, modifiers do not change its underlying creation parameters. See the list of available modifiers.
You use the Modify panel to:
Change the creation parameters for existing objects.
Apply modifiers to adjust the geometry of an object or a set of objects.
Change the parameters of modifiers and select their components.
Delete modifiers.
Convert a parametric object to an editable object; see Modifier Stack.
The Modify panel stays in view until you dismiss it by clicking the tab of another command panel. The contents of the panel with its options and controls update when you select an object, giving you access only to what you can modify about that object.
What you can modify depends on whether an object is classed as a geometric primitive like a sphere, or as another kind of object, such as a light or camera. Each category has its own range of possibilities. The contents of the Modify panel are always specific to the category as well as to the selected object. When you make a change from the Modify panel, you immediately see the results transferred to the object.
You can change or delete modifiers by using the modifier stack.
See also
Procedure
To use the Modify panel:
Select an object.
On the Command Panel, click the Modify tab to display the Modify panel.
The name of the object appears at the top of the Modify panel, and the remainder of the panel displays settings for the object or the modifier at the top of its stack.
You can now do any of the following:
Change the parameters for the object. As you change these parameters, the object updates in the viewports.
Apply a modifier to the object.
Change the parameters for a modifier. As you change these parameters, the object updates into the viewports.
Collapse the stack to create an editable mesh or other editable surface.