[support] Is it possible to add more pattern for mail editor template

[Johnny Xiao]

I am using Mail Editor Module for editing my subscription emails.

Since I have multiple taxonomies associate with one node, I wonder if it
is 

Possible to add more patterns to in the pattern list, so I can use them
in 

Subscription emails to distinguish different nodes.  (in my case, some
of my

Nodes have same names but with different taxonomy)