Hi @rrp -
No, not exactly. The limitation is only on these tabs:
You cannot customize these in Rhino 5, 6, or 7. We hope to eliminate this limitation in Rhino 8 (@JohnM is actively working on it now).
That said, today, in Rhino 5, 6 and 7, you can add your own custom “tool palettes” (the Mac word for Toolbars). You can transfer these with ExportPreferences
and ImportPreferences
.