I don't think that this is possible in the published dashboard at web but we can achieve the same via command line. We can insert the data via command line into the extract.
To achieve this you can use the command :
tableau addfiletoextract --file "<filepath> --server "<serverpath>" --datasource <sourcename>" --username "<uname>" --password "<pass>"
For more details the following link might be helpful for you regarding command line utility
Hi Prashant , thanks for the prompt reply.
Can you please elaborate on how to implement this ?
And if possible, is there any easy way around it as I am trying to sell the dashboard idea as a tool. So the best solution for me would be something like a click and write kind of thing.
If something like this can be implemented using annotations or any other method, I ll be all up for it. Just need it to be something really simple and easy.