I wish once a store shows up in the map it stays there. How could I do this? (I could recreate the dataset so that once a store appears in data "t", it appears again for all years greater than "t" but I'm sure there must be an easier way.
Sorry for the delay in response! To get the points to stay, before publishing the workbook to the web, click the Show History box on the page shelf. Click on the drop down menu next to Show History and choose All under Marks to show history for. Then, publish it!