As you know, to generate such FE Modeling, it is necessary to first generate Nodes. The coordinates of the nodes should be such that they produce the sphere geometry or geometry you want. Then you need to generate the SHELL 181 element using all 4 adjacent nodes (as described in the software Help).
Similar to this, I have done this for the FE Modeling of circular cylindrical shells
Based on SHELL181: http://dx.doi.org/10.13140/RG.2.2.21350.34882
Based on SHELL281: http://dx.doi.org/10.13140/RG.2.2.11179.16163
Based on SOLID185/SOLSH190: http://dx.doi.org/10.13140/RG.2.2.31311.82089
I hope that reviewing them will be useful for your research.