This could be impossible but thought it worth asking, we are creating a number of website at the moment which are on the same template but need to have different setting within the web.config file. I was wondering is it possible to have these items within umbraco side and they would be looked up within the web.config?

example below: we need different details ReCaptcha keys for each site so instead of needing to go into the web.config on each site we would like to be able to just add this within umbraco and it would be looked up.

hope this makes sense :)