All the issues below are illustrated by map.png.

(1) Edit a label and click "Apply". The label in the "Map elements" list (red) lags one step behind. Its label in the list of connectors (yellow) never changes.

(2) It is not entirely clear what "-" in "Label location" means (green). Maybe "Default" would be better?

(3) Similarly, maybe we should rename "Map elements" to "Selected map elements" (cyan)?

(4) Moving an element on the map does not change its coordinates (blue).

(5) When an icon is selected, the link line is shown above the icon (compare violet with brown).