How do you use a Shield For Slayer?

Hi there I was trying to figure out how to Use a Shield with your slayer with your weapons But I can't figure it out

The steps ( thanks to Hokage)

- Wear your 2 normal weapons
- Wear a 2h sword or axe ( Juria model weapons )
- Wear the shield
- You'll have 1 weap and a shield , just equip the last weapon.