In this error message:

Error: There was a timeout while attempting to connect to the network.
       Check to see that your provider is valid.
       If you have a slow internet connection, try configuring a longer timeout in your Truffle config. Use the networks[networ

I need to be able to specify a block as the defaultBlock value when calling a contract.

Screenshot of what im referring to:
https://enj.in/i/ed3z9j2a

I dont think this is possible right now, but if it is, please enlighten me.

Thanks