How to keep right sidebar customized?


Everytime i open a file ,Some times sidebar were customized

But sometimes doesn’t, it just go back to default setting.
like this↓

It’s really annoying…

Maybe someone knows how to solve this problem?

Options or Right click, Lock Docked Windows

Rhinoceros Help - Using toolbars and buttons | Rhino 3-D modeling (

I did,but sometimes works ,sometimes doesnt.
and is it possible that every new file right sidebar could be pre-customized?

anyway, thank you for resply!

I think a problem could be to run several rhino instances simultanously. If you close them, the settings of the last one will be kept if I remember correctly. So if you change something in one instance and close it first, it´s all gone.