I am a newbie to Blender. I try to make the figure of the body. I follow all instruction from this video youtube tutorial. (slow down 0.25 to follow).After finish basic figure turn to the part of sculpting. I am only have four points for grab. The video have more points for grab. How is it possible to start with a normal cube that has more points like the ico sphere ? What wrong of my setting?
You need to apply the Subdivision Surface modifiers of the cubes before you can sculpt the high poly mesh.
Go to the Modifiers tab (right side of screenhot 2 below), open the drop-down menu right next to the modifier's name (Subdivison) and choose Apply -or- hover the mouse over the modifier and press Ctrl+A.
The modifier takes the base mesh (the cube), subdivides the mesh, and outputs a sphere-like mesh that you see. In Sculpt and Edit mode you can only modify the base mesh (the cube).
Turn on the Wireframe in the Overlays menu:
... and switch to Edit mode:
Here you see the base mesh that you can edit and sculpt, and the output of the modifier at the same time. The crosses of the black wireframe indicate the points where you can grab a yellow point in Sculpt mode.
After you have applied the modifier you will have a lot more points to work with.