Option to enable/disable adding Track name prefix and Parent Track name prefix if there is a parent track. The option is changed for each Region Track by right clicking on the region track name button, and check "Use Track/Parent names as prefix"

It separates prefix with a space by default, which you can change in preferences with a _ or with an empty string or whatever is needed.

* v2.0pre6 (2019-02-13)
  + option to add Track name prefix and Parent Track name(if any) to region names.
  + added Prefix separator option in preferences (a space by default)