Start the software. On the File menu select New. The "Weaving Draft Properties" dialog appears.

Set up the size of the draft you want, whether you want liftplan or tie-up, choose a palette and click "OK". The main window will show your new draft.
The draft comprises the usual four quadrants of a handweaver's draft, with extra elements to control the colours used. The draft is created by selecting cells. The selection behaviour is slightly different in the various sections:
In all sections, you can drag the mouse to select multiple cells. All editing actions can be undone with Crtl-Z or the Edit->Undo menu, and re-done with Ctrl-Y or the Edit->Redo menu.

The grey area in the draw is selected for copying. Sections of the draft can be copied and pasted in the draw and shed areas, and even pasted between them. Hold the Shift key while dragging the left mouse button to select an area. This automatically makes it available to paste. Now right click where you want it to go, and select Paste to paste as exact copy. Paste Special allows certain transformations to the copied area when pasted:
If you already have a draft in WIF format you can import it and to view or modify. Use the File - Open menu option, and select WIF as the file type. Then just find and open your file.
You can then edit it and save it for later use if you wish. Note that it is not currently possible to save as WIF, the file will be saved in the internal WSML format.
On the Draft Properties dialog, select Network. Note that only liftplan networks are supported, and so the Liftplan and Treadles boxes are disabled.

As well as the familiar weaving draft window, and additional window is shown to control the network properties. Changes here are reflected immediately in the draft. The draft can still be edited directly, but any changes will be discarded without warning if the network properties are changed.
The terminology used here is the same as that used by Alice Schlein in the book "Network Drafting - an Introduction". If you are unfamiliar with network drafting I recommend getting hold of a copy.