ondraayyy , i started working on the plugin this is what i done until now , Try the Demo on Chrome , it won't work on firefox ,
before i explain , i am doing this plugin for free no need to pay me , and it will be free for all other Construct 2 users that want to use it or edit it.
1) Click on Start Recording
2) Write in the TextBox , mouve mouse etc...
3) Click on Stop Recording
4) Click on play Last Recorded , a video will startup just above the button , showing you the record
Demo
Plugin Beta-Test
The only problem now is the Video Encodding , because until now , the encodding that i am using , work only on some platform , check this link :
http://caniuse.com/#feat=webp