Learn the basics of the SIYMarket editor to quickly start adjusting the patterns. Open the editor and your pattern is imported. Learn the interface by selecting your pattern etc..
Adjusting a pattern in the editor starts with selecting the adjustment tool and selecting the part of the pattern that needs to be shorter or longer. Select the tool in the toolbox and drag the sleeve up- or downwards.
Once the pattern adjustments are done, click the PDF Preview button to have a overview of the pattern. This is the pdf you'll be printing or receiving to start from.