Value Box, Grid Or Panel With User Selectable Start and End Time

 I have managed to find my way around a lot of tasks and requirements in Axiom but I still seem to be struggling with something I believe should be simple (FLW!!!! )

 I have many devices with run hour values. I want to display the run hours for each device over a user selectable time period.

 I cannot see how to link a value box to a start/end time that is selectable. I was able to pre allocate a start time and period and show aggregates for start, max, min and delta – I’d like to have this time start and period flexible if possible.

I’ve watched what seems like hours of Axiom videos but I cannot see where I can create a user selectable date range and apply it to the start and interval properties.

I believed I could apply a date/time range to a panel or a grid, so tried embedding a grid into a panel and then added value boxes but the value boxes seem to follow their own attributes (Not the grid or panel they reside in).

If I can use a start date/time variable and a period variable which is then applied to all the value boxes, I believe this could be a work around? I was expecting to be able to use the built-in picker that is used in the trend graphs. This would be a better and simpler experience for the user.