Grbl Controller GUI problem

Hi,

I have downloaded Grbl Controller 3.6.1. In its "Settings" list, many settings are missing. For example : I don't have max travel settings like $130=225.000 (x max travel, mm).

Also, reference numbers of the settings are different from those I saw on many web sites. For example I have $1=314.961 (y, step/mm) instead of $101=314.961 (y, step/mm).

Where does this difference come from ? Any ideas ?

Thanks