How do you unlock 4th and 5th map? I've beaten 1-3 and don't know

They changed how to unlock 5 map slots in poe I learned this from a comment earlier

Saudações, Exilados! Hoje teremos um vídeo bem rápido sobre como liberar o quinto slot do

poe 5th map slot You can unlock the fifth slot by completing a map opened when you put 4 timeless emblems in the map device Helps when you want to run with

poe unlock 5 slot map device The fifth slot in the Map Device is now unlocked upon completing a non-Valdo's Tier 17 Map forumview-thread