Help my vape client doesn't have backtrack option

[anadius]

I recently bought this hacked client and im looking for some good config,people saying backtrack was good rather than REACH but my vape client not have backtrack option

 

[pogama]

I recently bought this hacked client and im looking for some good config,people saying backtrack was good rather than REACH but my vape client not have backtrack option

Use 1.8.9