the user of a dashboard should be able to select a local file (local in the file system of the machine running the browser) and load it in the frontend; the file is assumed to be in JSON format; the user should be able to explicitly display the uploaded content (maybe in a temporary modal window pane that disappears when clicking on a customary X icon or a click in any place outside the pane); the user should be able to send a command to a Tango device (this would send the config string read from the file); perhaps with a simple command button. NOTE: it is not clear to me if it makes sense to have an upload string be applicable to more than 1 command (as opposed to having a config string 1:1 with a command). Added value It could be interesting to consider the idea that WebJive would validate the loaded json. In this case the dashboard designer would have to specify a "strict" behavior by WebJive and perhaps add a relevant json schema. In this case, when the uploaded string fails the validation, error messages should be displayed like other errors generated by validating dashboards.