Request/suggestion/plea to allowed combined functionality of these 2 widgets across all ESRI products (WAB, ExB, Dashboards etc). Please see an example of suggested legend/layer functionality here, https://maps.cityofsydney.nsw.gov.au/accessibility-map/ It's not polished but gives you the basic idea...
Combining functionality would increase screen real estate and improve UX.
Using 2 widgets, separately, we've found is confusing for the user.
If anyone has a workaround I would love/appreciate/be ever grateful if you could share.