Hi Bob, v4 is the current version so you're up to date right now.

- Michael

Hello BurrMan, What do you mean?

Could u elaborate it more or send a photo?

I know u can have your sphere back like the way it was in the beginning if you have the hole where there is not latitudinal line! by just deleting the circle indicating the hole!

Hi Drill,
I meant what Michael shows here:

https://moi3d.com/forum/lmessages.php?webtag=MOI&msg=10365.8

""""""if you have the hole where there is not latitudinal line"""""

Surface edges don't stop you from being able to untrim the surface. That would be an indication you need to separate more, or just select more edges for the untrim to work (usually resulting in more "re-trimming to get back all the WANTED boundries)