4. The method of claim 3 , further comprising: receiving selection of a particular ranked identifier from the at least one of the ranked one or more first identifiers; and connecting a particular block, associated with the particular ranked identifier, to the block.
4. The method of claim 3 , further comprising: receiving selection of a particular ranked identifier from the at least one of the ranked one or more first identifiers; and connecting a particular block, associated with the particular ranked identifier, to the block. 5. The method of claim 4 , further comprising: providing for display, via the user interface, the model with the block connected to the particular block.