Hot Fixes (HFs) for Smart Construction require the performance of special instructions in order to enable new features or fixes delivered in the hot fix release. You should always consult the README file delivered with the hot fix for these special instructions.
Hot Fixes are cumulative, so installing a later HF will install the files required for earlier HFs, but any required load files will need to be loaded in the order they were released, from earliest to latest HF. For example, installing HF3 would also install the files from HF1 and HF2, but when performing any required file loading, you would need to begin with HF1, then load the files for HF2, and then finish with HF3.
Starting with HF3, you must have the minimum Intergraph Smart Licensing version 14.01.16 or higher to run Smart Construction.