It would be helpful to have the ability to create multiple slave visualizations that are synced together so that a change to one such as adding a map layer will change them all. For example, imagine you have several dashboard tabs and each tab has the same areal map but different visualizations to analyze the spacial map data. Currently if I want to add or change a relevent layer I have to go to each one and change them all or replace them so that they are all up to date.