Diogo, I tried to do it and then realized it is way more than that. With "class SLA processing" option installed or not,
the value will not display. Looking at xx_stype_tab.htmpl file, I saw that there will be functions and queries to return
the slas and then queries and functions to return the sdsc object to display the service type. I am not sure how this can be done in the list_xx form for the lsCol macro(I think it would require a lot of customization,not only htmpl modification).
It may not worth the effect because the list does show the SLA violation and projected violation and together with the notifications from the attached SLA it is enough to know the SLA situation for the tickets. Thanks _Chi
PS. the "class SLA processing" option will enable search tickets using service type. it has nothing to do if the service type display in the list or not.