To float a copy of a selection:  Make a selection in an image and choose Image > Select > Float. Deselecting and defloating selections Deselecting a floating selection makes it part of the original image. To deselect a floating selection, press Esc or Enter twice (Mac) or Esc twice (Windows), or choose Image > Select > None. To make the floating selection part of the image but still retain the selection, you can press Esc or Enter (Mac) or Esc (Windows), or choose Image > Select > Defloat. Moving selections To move a selection, you can press the keyboard arrow keys or drag the selection with the Marquee, Lasso, or Wand tools. If a selection is not floating, it becomes floating when you move it. To keep the pointer from interfering with your view of a small selec- tion, select the Remote Move tool in the Painting toolbar and drag it anywhere in the drawing area. Canvas moves the selection in the direction you move the pointer. Changing the opacity of floating selections You can change the opacity of a floating selection and make the pix- els behind it partially visible. You can also change the mode to pro- duce different effects. Note: You cannot make selections partially transparent in Indexed or Black & White image modes. 1 With a paint object in edit mode, select part of the image. 2 From the background color palette icon in the toolbox, select a color to use behind the floating selection. This color will start to appear when you make the selection transparent. 3 Hold down the Option key (Mac) or Ctrl key (Windows) and choose Image > Select > Float. Canvas floats the selection and fills behind it with the background color. 4 Choose Image > Show Channels to open the Channels palette. Set the Floating Opacity value to less than 100 percent to make the selection become transparent and reveal the background color behind the selection. 5 To change the mode, choose a new mode from the Mode pop- up menu. Dragging a selection floats it and leaves an area filled with the current background color (A). A Remote Move tool Floating Opacity slider in the Channels palette Tip To use the Floating Opacity slider in the Channels palette to lighten a floating selection, fill behind the selection with white or a light color.
Canvas 8 Help: Selections and channels (12 of 32)                                                   Page #662