The IBM‐2+ Configuration Mixing method has been expanded, in order to consider several multiparticle‐multihole (np‐mh) configurations simultaneously. The various np‐mh configurations obtained by exciting pairs of protons and/or neutrons across major shell gaps are treated in a consistent manner, along with the normal configurations for a nucleus. As a test, the method is applied to the nucleus192Hg. Previously determined parameters are utilized for the normal (0p‐2h) proton configuration and the expected shape‐coexisting (2p‐4h) proton configuration. Three other excited np‐mh configurations are included, with a consistent set of Hamiltonian parameters.