Not for all Rhino components there is the equivalent in Grasshopper and it would be impractical to create them all. It would be interesting to have a component that can execute Rhino commands in a Grasshopper environment.
I suggest 4 inputs:
First data input on which to perform the operation.
Second input command name.
Third, a panel with all the settings of the command, if not put, is executed with the default rhino settings
The fourth that needs a True / False value or a Button to start the command
two silly examples:
for commands like _MergeAllCoplanarFaces you don’t need the third input
for commands like _Smash you need the third panel where with a Yes / No list you can decide how to apply the command
I know that not all commands are that easy to implement because there are nested options but it would be interesting to think about it