Need help with some ores

Status
Fixed
Issue description

hey, i have been looking on google for ages but i can't find this so ima ask here, if i wanted to recreate Iron/Diamond or, what would I Put here:

 

Frequency on chunk: ?

Frequency on specific chunk: ?

 

And can someone explain why it doesn't allow you to set a number like this: 4-8, just like this 4.

Issue comments

Frequency on chunk: How many ore groups in average on a chunk

Frequency on specific chunk: How many ore blocks in average in a group