Event Source Wildcard/RegEx for Group Level SDT

We would like to be able to set SDTs at resource group level using wildcards (or regex).  For example, we have a number of event sources for Dyanmics NAV, the names of which all start with "Dynamics_NAV", so we'd like to set one SDT on a group for all the event source that match the expression.  Cureently, the only way to deal with this is to have multiple SDTs at the evetn source instance level, which is time consuming to maintain when an SDT needs amending.