text: I believe you are talking about the maps.me ipad app? It is not the correct tool for the job. I'd recommend using the iD editor, that is a javascript editor built into the openstreetmap website. To delete something like a bus stop (or most things) you open the iD editor by clicking the edit button, then click on the object (e.g. bus stop) then click on the little trash can that pops up. It's quite straight forward, and a good editor.