I am having issues with a laptop I converted from the sims 3 to the sims 4. The laptop in the sims 3 was animated, when a player clicks on the laptop, the lid opens when the sim goes to use the laptop.
The sims 4 does not have laptops, the game has desktops and pads. One other person was successful in getting the lid to open, but it stays open and never shuts. It is not animated.
I can either get the lid to open and stay open, or I can animate the lid.
I know nothing of animation and I do know it has to be outside of Blender. So, I will need to open the lid and keep it open, but have neither "cut" through a mesh before. I am extremely new to Blender let alone to meshing and creating.
So, I would need detailed explanations; preferably with photos, I'm a visual learner.
Here is a photo of the laptop Here is the file 
Thank you in advance for all of the help with this. It is greatly appreciated.



