the post above this one.., the context menu will not show on mt screen grad.., so, right click on the object and choose 'edges.' then select all the edges you want to bevel.., see the icon on my shelf, 4th one from the tool box, thats custom icon i have put there, I mentioned i earlier.., it allows me to pick one edge.., click that icon and it will select the edges along the axis I have selected.., in other words, it saves me selecting all the edges one by one.., but one by on is OK, just takes time, also if you deselect by accident, its a drag because you have to select them one by one again.
take it easy and life will be easy