ZBrushCentral

Unable to save tool in zbrush core?

I’m hoping I’m missing something here, but for the life of me I cannot find a way to save tool in zbrush core. The button just isnt there, in the shelf or the palette. Is this not possible? Seems like a very strange thing to omit.

In ZBrushCore you don’t have the option to save as a ZTL file. It uses ZPR only under File > Save or Ctrl + S.