Create nav_extended_eng.md
Create nav_extended_eng.md
Shadealex/smartbox,shooterok/shooterok.github.io,vmazur/smartbox,immosmart/smartbox,dkfiresky/smartbox,shooterok/smartbox,Shadealex/smartbox,shooterok/smartbox,Shadealex/smartbox,shooterok/smartbox,immosmart/smartbox,dkfiresky/smartbox,immosmart/smartbox,shooterok/shooterok.github.io,shooterok/shooterok.github.io,dkfiresky/smartbox,vmazur/smartbox,vmazur/smartbox