location sequence in action presentation form

A-in the present action
The text above the map should be complemented as follows :

1-Drag on the map to move it , Click on the region your action is in, and a marker appears where you have clicked
2- when clicking on + the map will center around this provisional marker
3- each time you click somewhere else, the marker is moved there
4- by combining 2 and 3 you will get where you want
5- if the map disappears when you get closer, click on “–“ to make it appear again

B-how would the automatic address location work in the current interface ?

C- later on the country indication will center the map on the country ?