Can the build helper be used for large objects?

[Brain_Dawgs]

I'm trying to use the build helper to make a large object, but the helper freezes up when calculating the shape. If I intended to make a dome larger than the 256 blocks in diameter, would it be viable with the build helper, or is it simply too weak to handle such a size?

If it can be done, how would I increase the limit for making ellipsoids?

 

[SkylordLuke]

the only limit is your PC
dream big