From the animation screen, to delete a movement in your animation, there are three options.
1. Select the player or object which is moving. The path of the movement will appear. Click on the blue diamond of the movement you want to delete and then click the bin.
2. The second way is from the timeline. If the player/object is selected, their movements will come to the front of the timeline in blue. Click the movement you wish to delete, it will turn yellow, click again and then click the bin.
3. Expand the timeline to show each individual’s timeline by clicking the 4 lines to the left of the timeline. Double click the movement you wish to delete and click the bin.