if you are still under 70-80% with the extra modules it is possible to add an additional busboard

it is also possible to make double (or triple) headed power cables* - I think intellijel make these or small flying busboards that might be suitable

it really depends on the space in the rack the 2hp modules can also be quite deep so this may have an impact on which solluttion will work best for you

*this is really quite easy and inexpensive to do and can be done with no specialist tools

"some of the best base-level info to remember can be found in Jim's sigfile" @Lugia

Utility modules are the dull polish that makes the shiny modules actually shine!!!

sound sources < sound modifiers < modulation sources < utilities