Swipe with multiple Maps and Map Layers (copying Wayback interface)
I am attempting to recreate some of the functionality of the World Imagery Wayback app with out of the box Experience Builder, specifically the Left and Right selection lists. I have gotten quite close, but have run into one issue.
My approach has been to create two separate but identical (in content) web maps, each with every imagery layer that I'd like to use. In the Map widget I add these two maps, then add a Swipe widget in "Swipe between web maps or web scenes" mode. Finally, on each side of the Map I have a fixed panel with a Map Layers widget in "Interact with a Map widget" mode. For the Left one, I disable all layers that are within the "right" copy of the map, and for the Right one, disable all layers within the "left" map, so that each is only controlling the layers for that side of the swipe.
At this point, I have something that looks and mostly functions how I want, except for one detail: the Map Layers widgets only show the layers for the map on the side that has last been clicked in/focused, and the other one displays the "There are currently no items to display" message, so a user would need to click into each map to make their layer selections, and would be unable to see what layers are being compared on both sides. I guess this is because the Map widget is only returning the visibility status of the layers currently visible in the focused side of the swipe, or something along those lines, see below:
I am wondering if there is another strategy to make this work with the default widgets before I look into making a custom version of one or more of them. I am also aware that the functionality can be achieved with the Swipe tool in an Instant App, but I find the Left/Right Selection panes a bit more intuitive than the Instant App swipe tool's selection box which is why I'm pursuing this way instead.
