as you can see, new version has little difference about parameters

now there is no Repeats/Skips but just sequence of checkboxes - from the left to the right
each chechbox means - if checked means response with fake IMSI, not checked - correct IMSI
just compare as it was before 
for example Nokia 95 - 2/0 -- now it's first 2 checkboxes checked. 
Iphone - 1/1 - now first checkbox is not checked (means first read output correct IMSI - that is skip) 
and second checkbox is checked-out fake IMSI

and new parameter IMSI mask - simple too - 
each digit in this mask means if '0' then correspondent digit of Fake IMSI will be substituted in any time with real digit