Split an idMap value produced for the mainmenu family back into the parameters menu.runMainMenuCommand expects.
idMap
mainmenu
menu.runMainMenuCommand
Encoded address, either guid or guid|subGuid.
guid
guid|subGuid
command always set; subGuid present only for dynamic children.
command
subGuid
Split an
idMapvalue produced for themainmenufamily back into the parametersmenu.runMainMenuCommandexpects.