Everything Adding Effects Layers T-HFND-010-004 In Harmony, you can add effects through the Timeline view, connecting them to your drawing layers and then adjusting the parameters until you achieve the look you want. How to add an effect In the Timeline view, select the layer on which you want to add an effect. Do one of the following: In the top menu, select Insert > Effects and select the effect you want to add. In the Layers toolbar above the layer list, click the Add Layers button, select Effects then select the effect you want to add. Right-click on the layer, then select Insert > Effects and select the effect you want to add. The effect appears in the Timeline view, underneath the selected layer.