Once a continued subhead row (Trcont) has been set, the corresponding text repeats below the main table heading when a table breaks across blocks/pages. The text captured and repeated by Trcont can be overwritten if the text of the repeated subheading needs to change; however once the Trcont functionality has been activated, it cannot be turned off unless the table is ended or a blank row is introduced (both of which introduce artifacts that could impact the presentation of the content). 

It would be useful if Trcont levels could be selectively "turned off", allowing operators (and style developers) to cancel repeated subhead levels.