You will need:
- Green Screen Studio: https://goo.gl/T843yS
- Pose Player http://sims4studio.com/thread/2617
- Teleport Any Sim http://sims4studio.com/post/72734
- Adobe Photoshop: https://www.adobe.com
or
Gimp: https://www.gimp.org/ - Sims 4 hot keys and controls: https://simsvip.com/2014/08/04/the-sims-4-cheats-hot-keys-controls-list/