command zb/zt not working

[coderBuffalo]

'zz' work very well except 'zb zt',

computer OS is windows 8.1,

vscode version is :
Version: 1.28.1 (system setup)
Commit: 3368db6750222d319c851f6d90eb619d886e08f5
Date: 2018-10-11T18:15:15.139Z
Electron: 2.0.9
Chrome: 61.0.3163.100
Node.js: 8.9.3
V8: 6.1.534.41
Architecture: ia32

[alisonatwork]

Hi @wyshk2007 version 1.31.0 of the plugin has just been released with support for zt. zb is a little harder to do because it isn't a built-in feature of VS Code, but feel free to make a contribution if you have a good idea of how to do it.