Farzin,
If you have build out everything in the feature library then it should carry over to TBC.
I have used 1 for start and 10 for a building line and 2 for close. So to start a building line my code is 10 1. I then continue to draw the building with just using 10 for points 2 and 3. I then close the building by coding 10 2.

Are you using the feature library inside TBC or the stand alone program? You can create and edit there.


It could also be your import settings. 
I don't use the description tab unless I'm using attributes.