This extension will populate a parameter on load based on a field in your data source. Make sure that field is only returning one value for the entire data set. An easy way to do that would be with LOD, like so: {MAX([Date])}.
Select a parameter to affect:
Select a field:
If you don't want this extension to update your paraemter every time you switch tabs in a workbook set a "First Load" parameter. Create a boolean parameter set to true and choose it in the drop-down below. Make sure when you save the workbook it is set to true.
Optional: Select a "first load" parameter
This dialog will disappear when in viewing mode. Resize the window once setup is complete.
Make sure that you add the url for this extension (https://default-parameter-value.glitch.me/) to your safe-list in order for it to work on Server/Online
Source Code | Questions? @KroseKeshia
