For an overview about drawing in Lotta, expand the following:
The Pen tool is essentially the same in Lotta as in VStitcher, though there are some differences. In Lotta, you cannot draw:
Floating lines (lines outside of garment pieces)
Although the Pen tool is essentially the same in Lotta as in VStitcher, there is a difference as to what you can do with the tool and the lines you draw in Lotta:
Lotta lines can only be drawn inside a piece
A line drawn in Lotta is only editable in Lotta
A line drawn in VStitcher is only editable in VStitcher
In VStitcher, you can:
Divide a piece using a Lotta line
Assign a seam to a Lotta line
The major use case for drawing lines in Lotta is to add a new cut line.
For more information, refer to Pen Tool.