The NSX Gate Expander opens up provisions for jammable rests, gate length, note repeat, and VeloGates (gates with variable amplitude) as well as typical keyboard on/off style gate outputs to NEXUS SEQ. It's quite a good partner!

• 4 gate outputs to NEXUS SEQ
• 2 are fully featured capable of rests, note repeat, and gate length
• 2 are keyboard-style gate outputs that send gate high when keys are pressed

https://rabidelephant.com/products/nsx-gate-expander