When you want to remove or subtract from a selection, depress the Ctrl key while selecting. Overview So far we have created selections and edited them. Selections allow you to apply effects to isolated portions of your graphic or photo. You can create a selection, apply some effects and then add or subtract from the selections and apply more effects. When you apply effects to a selection and then edit the selections and apply more effects very interesting things happen.
Lets take a look at an example.
In the following example a selection was created on a new layer. Then additions were made to the selection. Each time an addition was added to the selection another effect was applied. I created some petals using the Freehand Point to Point selection tool. Then I applied a sunburst gradient.