Can you have numbers in Context names?

We have a site were doing and we need context names ot have numbers in in order to match the subdomains theyre are going to be tied to (im following http://www.belafontecode.com/how-to-host-multiple-sub-domains-on-modx-revolution/ )

ive set them up without but as soon as i try it with it doesnt allow me to add a number to the context (e.g 4trade)

At the moment, no. The keys for Contexts must start with an alphabetic character.

In the future we are going to add a name column for Contexts to allow any name to be used for display/organizational purposes without affecting the use of the current alpha-numeric keys (which uniquely identify the Contexts).

thanks, its fine i sorted it. just rerouted the subdomain to the 4trade. thanks Opengeek