@Jianxia I have been exploring ExB like the rest, and it appears like we have a long way to go. Keeps me up. Other thing that is very concerning with ExB app is there is no way to open attribute table of a layer by going to the layers' ellipsis - the three dots next to a layer like in WAB. In WAB you can go to the layers' ellipsis and 'View in Attribute Table'. The attribute table offers Options, Filter to do all sorts of querying. This is especially critical/important as it gives an opportunity for an array of query options on all the layers present on the map app to the clients (end users). They are not limited to pre-configured queries only like in ExB.
With ExB the developer of the applications make assumptions on what different queries the clients need and accordingly have a pre-configured, limited query options available on the map app for the clients to perform. There has to be much more than that, Please. The query needs to be open like in WAB where the clients can perform ( have the option) whatever query they want to on any layer they want to that is available on the map app.
Please make a way for the clients to be able to pick and choose what they want to query from any layers attribute tables like in WAB. Please make the query option open on the map apps so the clients can look up query, export table or filter any layers to print a map.
Thank you,
Abi