I don't use this - so I have not tested it.
When you do use it - please reply back.
When you create your output file - there is an edit box that allows you to place your RDS information. This information is saved as part of your sequence.
When you create a PlayList - there is a button on the bottom of the dialog to identify the folder to place your RDS.txt folder in.
When you play a PlayList - HLS will replace the contents of the RDS.txt file with your Sequence RDS info for each sequence played.
Hope that helps.