Hi we use some older GPS units whose shapefile output are not compatible with ArcOnline
However, they do provide coordinates (LatLong etc) that we could theoretically add into ArcOnline maps as perhaps sketch/map notes points, if there is a function to input a location then be able to add a map note/sketch symbol on that location
There does not seem to be a way in Map viewer Classic to input your own coordinates at all unfortunately. On Map Viewer, you can input a location in Tools and can zoom to it; however when switching to Sketch to add a symbol the screen moves due to the sketch pane coming in and the locations no longer line up.
You can do this in GIS Pro, where the location can remain on the screen, however we ideally want our students to be able to do this from their own computers.
Thank you for the help