Would like to be able to copy surfaces that define geometry such as internal structure, tanks, etc between models. Currently process is to recreate the required surface(s) in the new model, defining the settings (stiffness, etc), updating the rows and columns to match the donor model before copying the donor model control point data and pasting into the new version. Would be very useful for building library of common components.
Try using the option to not close the current model when opening a new model.