Operations:

• Copy Select Copy Pick Color
• Change selection style Change the selection color
• Delete the selection, delete the selection color

Option:

• Add building blocks
• Paint the painting with textures
• Select Select multiple squares
• Dig digs blocks

Shapes:

• Full[Ctrl+1]
• Half[Ctrl+2]
• Ramp[Ctrl+3]
• Corner[Ctrl+4]
• Rotate Shape[R]

Texture:

• Texture the terrain to further differentiate paths.