The amount to extend the sleeve beyond the length of the sleeve in the base block.

> #### This is not supposed to be zero<
> Setting this to zero will make the sleeve length the same as the base length of the Bent block,
> which is certainly too short for a coat.
> Please take note of the default value and use that as a basis to lengthen or shorten the sleeve.


## Effect of this option on the pattern
![This image shows the effect of this option by superimposing several variants that have a different value for this option](bent_sleevelengthbonus_sample.svg "Effect of this option on the pattern")