I need help in creating slab. What is the best way to create it in analytical modelling (Staad Pro Connect Edition V.22). Should i use plate or mesh and what are their difference?
You can refer the following links.
You might also want to check this tutorial: https://docs.bentley.com/LiveContent/web/STAAD.Pro%20Help-v10/en/GUID-F6D316E3-138C-44BF-854A-EBF213BF03FF.html
The tutorial covers 4 methods, but if I understand correctly there is a 5 method which would be a parametric model which seems to be the most desirable option. Is that correct?
Yes, Parametric Modeling could also be used. It is the most advanced meshing method in the analytical modeler and it is the only method to be used when user wants to perform the shear wall design in the Advanced Concrete Design workflow (RCDC).