Configuring Basemap Time Slider default view

Hi 

I am trying to create a button with a custom command (in VertiGIS Studio Web Designer) that switches the basemap to a Time Series basemap and also makes the basemap slider component visible. I have successfully created this custom command for the button (see below), but I would also like to change the default view for the basemap slider - I want it to show the latest imagery by default (slider to the most far right by default). Currently, the default view is showing the earliest imagery (slider to the most far left).