Cloudflare Addon cleartext

Hello,

Thanks for the great plugin, I do however have a slight issue with the Cloudflare addon as it appears to store the Cloudflare Global API key in clear text (apologies if I have this all wrong)? I imagine this means that any admin user can see it ? Is there not a way to encrypt it once its been saved? Also how about using Cloudflare Zone API keys instead of the Global?