ostexo

If you split your circle using the cross lines and separate the lines of the other profile you can then make 4 seperate lofts (or mirror the lofts). Picture shows the 2 lines to loft between. then the same process for the other sides.

Also i use spaceclaim. Im not sure what you want to use it for? but it works well with rhino and can you can cut paste from MoI. it needs a bit of getting used to as its quite a different way of working. have you got a trial? my biggest tip would be if the part is symmetric cut half away and you can more easily adapt it then mirror it back after the changes? If you can keep splitting the part into simpler pieces it will work very well.

Jamie