If it was I, I would enter 2 ideas on the Golden Frog Ideas page in the following manner.
1) Allow Chromecast screen mirroring
2) Add per app/program support so that users are able to select which apps/programs will use the VPN when connected to the VPN
Feel free to add a comment to the idea card with details explaining what you would like to see in regards to the idea. After you have entered the idea, click the comments link on the idea card to submit a comment.
Golden Frog Support