Stitch Length can vary according to the object type as follows:
-
Single Stitches
: each stitch may be set from 1-12mm in 1mm steps, or embroidered without breaking up into smaller stitches.
The current maximum stitch length for new Single stitches, if it is desired to break them up into smaller stitches, is shown in the Preferences 
.
-
Running Stitch
may be set from 0.3-12.0mm in 0.1mm steps.
Cutwork needle lines are automatically set to 0.3mm.
-
Double Stitch
, Double Zigzag 
and Triple Stitch 
may be set from 1-12mm in 0.1mm steps. -
Motif Line
stitches may be set from 1-20mm in 0.1mm steps. -
Motif Fill
: the length of the running or triple stitches making the motif shapes can be set from 1-12mm in 0.1mm steps. -
Feathered Satin
(feathered both sides or one side): the maximum length of the stitches may be set from 2-30mm in 1mm steps. -
Shape Fill
: where Motifs are used, the length of the running or triple stitches making the motifs can be set from 1-12mm in 0.1mm steps. -
QuiltStipple
, Contour 
, Crosshatch 
, Curved Crosshatch 
and Echo 
Fill: the length of the running or triple stitches making the fill can be set from 1-12mm in 0.1mm steps.
Check the current setting by clicking the Options button in one of the Create tabs.