Add the ability to snap to exisiting layer in webmap.
When using the method geoshape (method:vertex), snapping to existing layers in the web map is something that would be really useful.
If using repeats it would be even better if you could snap to the previous objects, ofc that might be something that can´t be done, but being able to snap to an existing layer would alreday make survey123 so much more useful.
