If you want to have "cut, copy, paste and delete" direct in your C::B context menu do the following:
in file "cbeditor.cpp" in function "void cbEditor::AddToContextMenu(.." push between end of condition "if (!pluginsdone)" and (start of) condition "if (insert)" following lines:
//------------------------
popup->Append(idCut, _("Cut"));
popup->Enable(idCut, true);
popup->Append(idCopy, _("Copy"));
popup->Enable(idCopy, true);
popup->Append(idPaste, _("Paste"));
popup->Enable(idPaste, true);
popup->Append(idDelete, _("Delete"));
popup->Enable(idDelete, true);
popup->AppendSeparator();
//------------------------
and compile/build it.