The thread feed tab allows you to adjust the advanced thread feed machine settings.

Column Feed
- This setting determines how much thread the machine feeds when sewing
column stitches. The number in this field represents the percentage of
the column that is showing bobbin (this is represented visually by the
white line in the image to the right of the number). Use the up and down
arrows to adjust column thread feed.
To increase the thread feed for columns, you need to decrease the column
feed. The default for this setting is 50.
Run/Fill Feed - This setting determines how much thread the machine feeds when sewing run and fill stitches. To increase the thread feed for run and fill stitches, you need to increase the run/fill feed. The default for this setting is 100.
Material Thickness - This number represents the thickness of the material you are sewing on. The thicker the material, the higher this number should be. The default for this setting is 3, but you may need to adjust this setting depending on the thickness of your fabric. AMAYA OS provides some general guidelines on this setting. For more information on changing this setting, see Adjusting Material Thickness.
Autofeed Lower Limit - When you are in Acti-feed Auto Mode, the material thickness will never go lower than the number specified in this field.
Enable Autofeed Upper Limit Adjust:When this is checked, the user is able to use the upper Autofeed limits. If this is not checked, the upper Autofeed limit is set to the default of 40.
Autofeed Upper Limit: Use this field to specify how high you want your Autofeed to go.