You could try using a boolean. Just make another sphere but make it the same size you want the hole to be. Then intersect the too where you want the hole. Select the object you want to cut FIRST then the object to cut with SECOND. Then, Polygon>Booleans>Difference. You can then select the second object in the HyperG and scale and move it. Howevere you should be aware that it is a vary good idea to dellete your history when you are done because booleans can cause some problem if you dont.