How to cap holes in t splines?

Rhino Rhino for Windows
21

http://screencast.com/t/RGSwxoigG

22

Você conseguiu! Eu tinha tentado fazer isso antes e não consegui, meu cursor é jogado pra baixo.
You got it. I’d tried this, but my gumball starts to the ground.

23

Probably the project lock on the bottom, the one before last on my screen grab.

Ohh, and switch gumball of for that.

Oh, and smart track off too.

24

You’re right.