Save/Save as is a function to save the ZLS file you are working on.
Menu > File > Save (Ctrl+S)
Menu > File > Save As (Ctrl+Shift+S)
- Click File from the top menu bar.
- Click Save or Save as
- To save changes to the current ZLS file, choose File > Save.
- To save a copy of the ZLS file, choose File > Save as.
This is the dialogue that appears when you save a ZLS file with draping items or colorways. You can choose to include the draping items and colorway items in the zls. Saving without them can reduce the size of the file.