Done it a couple of times. I have seen write up's on at least one if not 2 people cutting out the round frame support under the oIl pan. Then welding it back in.
My self, I have removed the engine motor mount lower nuts, used a 2x4 with a v notch to put on the crank pulley to push up the engine enough to
remove the aluminum upper oil pan(after removing the metal lower pan), with a floor jack, if on the floor. If on a lift, I use a screw jack. Once this is removed lower the engine back down on the motor mounts. Then the crank and rod bearings can be spun in if you have the need. All depend if you need to do only the Rods and mains, if you need more work, as suggested pull the engine to do more. Once the pans are removed, it is way eaiser to clean part very clean.
but there are more than one way to do about any thing mechanical.
Cheers.