Maximum and Minimum Length have same meaning as on Manual Stitches object.
Connections are automatically adjusted when objects are moved or otherwise transformed to prevent insertion of jump (trim).
Jumps option allows user to create controlled jump stitches between objects. If objects are too close one to the other, it may be hard to scissor the tiny jump stitch between objects (left picture). User can create connection with jumps option between objects to achieve controlled jumps that are longer and easier to scissor.