Displaying GPS coordinates

If you right click permalink tab on the map page and then copy link address and then paste it you will get something like this. I have substituted your first pair of co-ords and it seems to work. http://www.openstreetmap.org/?lat=50.1373102630358&lon=%2014.4652336835861&zoom=17&layers=M

also if you click on edit (potlach2) and sign in then click on options and one tick box offers to show mouse pointer lat log which may be of use

@cendonuser If you select the direction arrows next to the search bar and drag the green marker to the osm the coords will appear in the 'from' box. You can drag the marker around the map to find other coords.

You can use uMap for that. You can create a new map, and then you can import data as CSV, so for your example:

lat,lon,description
50.1373102630358,14.4652336835861,test1
50.1368770323325,14.4654268026352,test2
50.1369939362421,14.4662743806839,test3
50.1373240163272,14.4661241769791,test4

NB: I've added a third column to give a "description" to markers.

You mean that you want to display a marker for these coordinates? If so, please read this other question.

If you paste a pair of the coordinates into the osm, 50.1373102630358, 14.4652336835861 you get
location and if you mouse-over the cords it found (under Results from Internal) a marker will show you where it is. I think you can only do one set at a time.